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Bröckelmann N, Stadelmaier J, Harms L, Kubiak C, Beyerbach J, Wolkewitz M, Meerpohl JJ, Schwingshackl L. An empirical evaluation of the impact scenario of pooling bodies of evidence from randomized controlled trials and cohort studies in medical research. BMC Med 2022; 20:355. [PMID: 36274131 PMCID: PMC9590141 DOI: 10.1186/s12916-022-02559-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 09/09/2022] [Indexed: 12/05/2022] Open
Abstract
BACKGROUND Randomized controlled trials (RCTs) and cohort studies are the most common study design types used to assess treatment effects of medical interventions. We aimed to hypothetically pool bodies of evidence (BoE) from RCTs with matched BoE from cohort studies included in the same systematic review. METHODS BoE derived from systematic reviews of RCTs and cohort studies published in the 13 medical journals with the highest impact factor were considered. We re-analyzed effect estimates of the included systematic reviews by pooling BoE from RCTs with BoE from cohort studies using random and common effects models. We evaluated statistical heterogeneity, 95% prediction intervals, weight of BoE from RCTs to the pooled estimate, and whether integration of BoE from cohort studies modified the conclusion from BoE of RCTs. RESULTS Overall, 118 BoE-pairs based on 653 RCTs and 804 cohort studies were pooled. By pooling BoE from RCTs and cohort studies with a random effects model, for 61 (51.7%) out of 118 BoE-pairs, the 95% confidence interval (CI) excludes no effect. By pooling BoE from RCTs and cohort studies, the median I2 was 48%, and the median contributed percentage weight of RCTs to the pooled estimates was 40%. The direction of effect between BoE from RCTs and pooled effect estimates was mainly concordant (79.7%). The integration of BoE from cohort studies modified the conclusion (by examining the 95% CI) from BoE of RCTs in 32 (27%) of the 118 BoE-pairs, but the direction of effect was mainly concordant (88%). CONCLUSIONS Our findings provide insights for the potential impact of pooling both BoE in systematic reviews. In medical research, it is often important to rely on both evidence of RCTs and cohort studies to get a whole picture of an investigated intervention-disease association. A decision for or against pooling different study designs should also always take into account, for example, PI/ECO similarity, risk of bias, coherence of effect estimates, and also the trustworthiness of the evidence. Overall, there is a need for more research on the influence of those issues on potential pooling.
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Affiliation(s)
- Nils Bröckelmann
- Institute for Evidence in Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Julia Stadelmaier
- Institute for Evidence in Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Louisa Harms
- Institute for Evidence in Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Charlotte Kubiak
- Institute for Evidence in Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Jessica Beyerbach
- Institute for Evidence in Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Martin Wolkewitz
- Institute of Medical Biometry and Statistics, Faculty of Medicine and Medical Center - University of Freiburg, Freiburg, Germany
| | - Jörg J Meerpohl
- Institute for Evidence in Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Cochrane Germany, Cochrane Germany Foundation, Freiburg, Germany
| | - Lukas Schwingshackl
- Institute for Evidence in Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
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Wang Z, Zhang Z, Zhang C, Jin X, Wu J, Su B, Shen Y, Ruan Y, Xing H, Lou J. Trace the History of HIV and Predict Its Future through Genetic Sequences. Trop Med Infect Dis 2022; 7:tropicalmed7080190. [PMID: 36006282 PMCID: PMC9416588 DOI: 10.3390/tropicalmed7080190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 08/10/2022] [Accepted: 08/11/2022] [Indexed: 11/16/2022] Open
Abstract
Traditional methods of quantifying epidemic spread are based on surveillance data. The most widely used surveillance data are normally incidence data from case reports and hospital records, which are normally susceptible to human error, and sometimes, they even can be seriously error-prone and incomplete when collected during a destructive epidemic. In this manuscript, we introduce a new method to study the spread of infectious disease. We gave an example of how to use this method to predict the virus spreading using the HIV gene sequences data of China. First, we applied Bayesian inference to gene sequences of two main subtypes of the HIV virus to infer the effective reproduction number (GRe(t)) to trace the history of HIV transmission. Second, a dynamic model was established to forecast the spread of HIV medication resistance in the future and also obtain its effective reproduction number (MRe(t)). Through fitting the two effective reproduction numbers obtained from the two separate ways above, some crucial parameters for the dynamic model were obtained. Simply raising the treatment rate has no impact on lowering the infection rate, according to the dynamics model research, but would instead increase the rate of medication resistance. The negative relationship between the prevalence of HIV and the survivorship of infected individuals following treatment may be to blame for this. Reducing the MSM population’s number of sexual partners is a more efficient strategy to reduce transmission per the sensitivity analysis.
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Affiliation(s)
- Zhen Wang
- Department of Mathematics, Shanghai University, Shanghai 200444, China
| | - Zhiyuan Zhang
- Department of Statistics, Columbia University, New York, NY 10027, USA
| | - Chen Zhang
- School of Nursing, University of Rochester, Rochester, NY 14627, USA
| | - Xin Jin
- Department of Mathematics, Shanghai University, Shanghai 200444, China
| | - Jianjun Wu
- Anhui Provincial Center for Disease Control and Prevention, Hefei 230601, China
| | - Bin Su
- Anhui Provincial Center for Disease Control and Prevention, Hefei 230601, China
| | - Yuelan Shen
- Anhui Provincial Center for Disease Control and Prevention, Hefei 230601, China
| | - Yuhua Ruan
- State Key Laboratory for Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, and National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Hui Xing
- State Key Laboratory for Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, and National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Jie Lou
- Department of Mathematics, Shanghai University, Shanghai 200444, China
- Correspondence:
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Bröckelmann N, Balduzzi S, Harms L, Beyerbach J, Petropoulou M, Kubiak C, Wolkewitz M, Meerpohl JJ, Schwingshackl L. Evaluating agreement between bodies of evidence from randomized controlled trials and cohort studies in medical research: a meta-epidemiological study. BMC Med 2022; 20:174. [PMID: 35538478 PMCID: PMC9092682 DOI: 10.1186/s12916-022-02369-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 04/06/2022] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Randomized controlled trials (RCTs) and cohort studies are the most common study design types used to assess the treatment effects of medical interventions. To evaluate the agreement of effect estimates between bodies of evidence (BoE) from randomized controlled trials (RCTs) and cohort studies and to identify factors associated with disagreement. METHODS Systematic reviews were published in the 13 medical journals with the highest impact factor identified through a MEDLINE search. BoE-pairs from RCTs and cohort studies with the same medical research question were included. We rated the similarity of PI/ECO (Population, Intervention/Exposure, Comparison, Outcome) between BoE from RCTs and cohort studies. The agreement of effect estimates across BoE was analyzed by pooling ratio of ratios (RoR) for binary outcomes and difference of mean differences for continuous outcomes. We performed subgroup analyses to explore factors associated with disagreements. RESULTS One hundred twenty-nine BoE pairs from 64 systematic reviews were included. PI/ECO-similarity degree was moderate: two BoE pairs were rated as "more or less identical"; 90 were rated as "similar but not identical" and 37 as only "broadly similar". For binary outcomes, the pooled RoR was 1.04 (95% CI 0.97-1.11) with considerable statistical heterogeneity. For continuous outcomes, differences were small. In subgroup analyses, degree of PI/ECO-similarity, type of intervention, and type of outcome, the pooled RoR indicated that on average, differences between both BoE were small. Subgroup analysis by degree of PI/ECO-similarity revealed high statistical heterogeneity and wide prediction intervals across PI/ECO-dissimilar BoE pairs. CONCLUSIONS On average, the pooled effect estimates between RCTs and cohort studies did not differ. Statistical heterogeneity and wide prediction intervals were mainly driven by PI/ECO-dissimilarities (i.e., clinical heterogeneity) and cohort studies. The potential influence of risk of bias and certainty of the evidence on differences of effect estimates between RCTs and cohort studies needs to be explored in upcoming meta-epidemiological studies.
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Affiliation(s)
- Nils Bröckelmann
- Institute for Evidence in Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacher Straße 86, 79110, Freiburg, Germany
| | - Sara Balduzzi
- Institute of Medical Biometry and Statistics, Faculty of Medicine and Medical Center - University of Freiburg, Freiburg, Germany
| | - Louisa Harms
- Institute for Evidence in Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacher Straße 86, 79110, Freiburg, Germany
| | - Jessica Beyerbach
- Institute for Evidence in Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacher Straße 86, 79110, Freiburg, Germany
| | - Maria Petropoulou
- Institute of Medical Biometry and Statistics, Faculty of Medicine and Medical Center - University of Freiburg, Freiburg, Germany
| | - Charlotte Kubiak
- Institute for Evidence in Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacher Straße 86, 79110, Freiburg, Germany
| | - Martin Wolkewitz
- Institute of Medical Biometry and Statistics, Faculty of Medicine and Medical Center - University of Freiburg, Freiburg, Germany
| | - Joerg J Meerpohl
- Institute for Evidence in Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacher Straße 86, 79110, Freiburg, Germany
- Cochrane Germany, Cochrane Germany Foundation, Freiburg, Germany
| | - Lukas Schwingshackl
- Institute for Evidence in Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacher Straße 86, 79110, Freiburg, Germany.
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Krueger H, Robinson S, Hancock T, Birtwhistle R, Buxton JA, Henry B, Scarr J, Spinelli JJ. Priorities among effective clinical preventive services in British Columbia, Canada. BMC Health Serv Res 2022; 22:564. [PMID: 35473549 PMCID: PMC9044882 DOI: 10.1186/s12913-022-07871-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 03/04/2022] [Indexed: 11/10/2022] Open
Abstract
Background Despite the long-standing experience of rating the evidence for clinical preventive services, the delivery of effective clinical preventive services in Canada and elsewhere is less than optimal. We outline an approach used in British Columbia to assist in determining which effective clinical preventive services are worth doing. Methods We calculated the clinically preventable burden and cost-effectiveness for 28 clinical preventive services that received a ‘strong or conditional (weak) recommendation for’ by the Canadian Task Force on Preventive Health Care or an ‘A’ or ‘B’ rating by the United States Preventive Services Task Force. Clinically preventable burden is the total quality adjusted life years that could be gained if the clinical preventive services were delivered at recommended intervals to a British Columbia birth cohort of 40,000 individuals over the years of life that the service is recommended. Cost-effectiveness is the net cost per quality adjusted life year gained. Results Clinical preventive services with the highest population impact and best value for money include services that address tobacco use in adolescents and adults, exclusive breastfeeding, and screening for hypertension and other cardiovascular disease risk factors followed by appropriate pharmaceutical treatment. In addition, alcohol misuse screening and brief counseling, one-time screening for hepatitis C virus infection in British Columbia adults born between 1945 and 1965, and screening for type 2 diabetes approach these high-value clinical preventive services. Conclusions These results enable policy makers to say with some confidence what preventive manoeuvres are worth doing but further work is required to determine the best way to deliver these services to all those eligible and to establish what supportive services are required. After all, if a clinical preventive service is worth doing, it is worth doing well.
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Affiliation(s)
- Hans Krueger
- H. Krueger & Associates Inc., Delta, Canada. .,School of Population and Public Health, University of British Columbia, Vancouver, Canada.
| | | | - Trevor Hancock
- School of Public Health and Social Policy, University of Victoria, Victoria, Canada
| | - Richard Birtwhistle
- Department of Family Medicine and Public Health Sciences, Queen's University, Kingston, Canada.,Canadian Task Force on Preventive Health Care, Ottawa, Canada
| | - Jane A Buxton
- School of Population and Public Health, University of British Columbia, Vancouver, Canada.,BC Center for Disease Control, Vancouver, Canada
| | - Bonnie Henry
- School of Population and Public Health, University of British Columbia, Vancouver, Canada.,BC Ministry of Health, Victoria, Canada
| | - Jennifer Scarr
- Child Health BC, Provincial Health Services Authority, Vancouver, Canada
| | - John J Spinelli
- School of Population and Public Health, University of British Columbia, Vancouver, Canada
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Jin X, Wang Z, Zhang Z, Wu H, Ruan Y, Zhang C, Kang R, Xing H, Lou J. The transmission of drug-resistant strains of HIV in heterosexual populations based on genetic sequences. PLoS One 2021; 16:e0259023. [PMID: 34851959 PMCID: PMC8635345 DOI: 10.1371/journal.pone.0259023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 10/11/2021] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND China's National Free Antiretroviral Treatment Program (NFATP) has substantially reduced morbidity and HIV/AIDS incidence since 2003. However, HIV resistance to antiretroviral drugs (ARVs) has been a major challenge for the current treatment of HIV/AIDS in China. METHODS In the current study, we established a nested dynamic model to predict the multi-drug resistance dynamics of HIV among the heterosexual population and evaluated the impact of intervention measures on the transmission of drug resistance. We obtained an effective reproductive number [Formula: see text] from each sub-model held at different stages of the dynamic model. Meanwhile, we applied Bayesian phylogenetic methods to infer the weighted average effective reproductive number [Formula: see text] from four HIV subtypes that sampled from 912 HIV-positive patients in China. It is an original and innovative method by fitting [Formula: see text] to [Formula: see text] by Markov Chain Monte Carlo (MCMC) to generate unknown parameters in [Formula: see text]. RESULTS By analyzing the HIV gene sequences, we inferred that the most recent common ancestor of CRF01AE, CRF07BC, CRF08BC, and CRFBC dated from 1994, 1990, 1993 and 1990, respectively. The weighted average effective reproductive number [Formula: see text] dropped from 1.95 in 1994 to 1.73 in 2018. Considering different interventions, we used a macro dynamic model to predict the trend of HIV resistance. The results show that the number of new infections and total drug resistance under the baseline parameter (S1) are 253,422 and 213,250 in 2025, respectively. Comparing with the numbers under the target treatment rate (S2), they were 219,717 and 236,890, respectively. However, under the ideal treatment target (S3, the treatment rate reaches 90% and the treatment success rate reaches 90%), the number of new infections shows a declining trend and will decrease to 46,559 by 2025. Compared with S1 and S2, the total number of resistance also decreased to 160,899 in 2025. CONCLUSION With the promotion of NFATP in China, HIV resistance to ARVs is inevitable. The strategy of increasing the treatment rate would not only ineffectively curb the epidemic, but also deteriorate drug resistance issue. Whereas, a combination of intervention strategies (the treatment rate reaches 90% and the treatment success rate reaches 90%) can greatly reduce both infection and drug resistance rate than applying one strategy alone.
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Affiliation(s)
- Xin Jin
- Department of Mathematics, Shanghai University, Shanghai, China
| | - Zhen Wang
- Department of Mathematics, Shanghai University, Shanghai, China
| | - Zhiyuan Zhang
- Department of Statistics, Columbia University, New York, NY, United States of America
| | - Hui Wu
- Department of Mathematics, Shanghai University, Shanghai, China
| | - Yuhua Ruan
- State Key Laboratory for Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases and National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Chen Zhang
- School of Nursing, University of Rochester, Rochester, NY, United States of America
| | - Ruihua Kang
- State Key Laboratory for Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases and National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
- Department of Disease Prevention and Control, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Hui Xing
- State Key Laboratory for Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases and National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Jie Lou
- Department of Mathematics, Shanghai University, Shanghai, China
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Jin H, Biello KB, Garofalo R, Lurie M, Sullivan PS, Stephenson R, Mimiaga MJ. HIV Treatment Cascade and PrEP Care Continuum Among Serodiscordant Male Couples in the United States. AIDS Behav 2021; 25:3563-3573. [PMID: 34046761 DOI: 10.1007/s10461-021-03315-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/19/2021] [Indexed: 10/21/2022]
Abstract
A large proportion of HIV infections among men who have sex with men occur within primary partnerships, however, there is a lack of research focused on serodiscordant male couples. We used baseline data collected as part of Project Stronger Together-a randomized controlled trial to improve treatment outcomes among 155 serodiscordant male couples. We described engagement in HIV care/prevention using the HIV treatment cascade and PrEP care continuum. Among partners living with HIV, 86.5% were linked to care, 77.4% retained in care, 81.3% prescribed ART, 60.7% adherent, and 67.7%virally suppressed. Among HIV-negative partners, 62.6% were willing to take PrEP, 48.4% had ever taken PrEP, and 26.5% were adherent to PrEP. Black partners living with HIV had lower odds of being virally suppressed compared to White partners. Our findings provide evidence to suggest designing programs to address the racial disparities in viral suppression, addressing barriers to HIV prevention/treatment, and improving PrEP education.
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7
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Malekinejad M, Blodgett J, Horvath H, Parriott A, Hutchinson AB, Shrestha RK, McCabe D, Volberding P, Kahn JG. Change in Condom Use in Populations Newly Aware of HIV Diagnosis in the United States and Canada: A Systematic Review and Meta-Analysis. AIDS Behav 2021; 25:1839-1855. [PMID: 33389321 DOI: 10.1007/s10461-020-03113-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/19/2020] [Indexed: 10/22/2022]
Abstract
HIV-infected individuals "aware" of their infection are more likely to use condoms, compared to HIV-infected "unaware" persons. To quantify this likelihood, we undertook a systematic review and meta-analysis of U.S. and Canadian studies. Twenty-one eligible studies included men who have sex with men (MSM; k = 15), persons who inject drugs (PWID; k = 2), and mixed populations of high-risk heterosexuals (HRH; k = 4). Risk ratios (RR) of "not always using condoms" with partners of any serostatus were lower among aware MSM (RR 0.44 [not significant]), PWID (RR 0.70) and HRH (RR 0.27); and, in aware MSM, with partners of HIV-uninfected or unknown status (RR 0.46). Aware individuals had lower "condomless sex likelihood" with HIV-uninfected or unknown status partners (MSM: RR 0.58; male PWID: RR 0.44; female PWID: RR 0.65; HRH: RR 0.35) and with partners of any serostatus (MSM only, RR 0.72). The association diminished over time. High risk of bias compromised evidence quality.
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8
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Zhang C, Qian HZ, Chen X, Bussell S, Shen Y, Wang H, Li X. HIV testing and seroprevalence among couples of people diagnosed with HIV in China: A meta-analysis. PLoS One 2021; 16:e0247754. [PMID: 33739981 PMCID: PMC7978381 DOI: 10.1371/journal.pone.0247754] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 02/12/2021] [Indexed: 11/18/2022] Open
Abstract
Background Partner notification and testing could expand HIV testing and link infections to care. We performed a meta-analysis on HIV testing rate and prevalence among couples of people diagnosed with HIV in China. Methods Six electronic databases (PubMed, Cochrane Library, Embase, Web of Science, the China National Knowledge Internet, and WanFang) and abstracts of five HIV/sexually transmitted infections conferences were searched up to February 1, 2020. Meta-analysis was conducted using a random-effects model to assess HIV testing rate and prevalence among couples of Chinese people diagnosed with HIV. Results Of 3,657 records retrieved, 42 studies were identified. Among them, three studies were conducted among pregnant women and 10 among men who have sex with men. The pooled uptake rate of couples HIV testing among Chinese people diagnosed with HIV was 65% (95% confidence interval, 57% -73%; 23 studies). The pooled HIV prevalence among couples who had an HIV test was 28% [24%-32%] (38 studies). Subgroup analyses showed that the pooled couples HIV testing uptake rates among pregnant women and men who have sex with men were 76% [66%-86%] (3 studies) and 49% [30%-68%] (8 studies), and the pooled HIV prevalence in two populations was 53% [27%-78%] (3 studies) and 14% [10%-17%] (10 studies), respectively. Conclusions Nearly two-thirds of couples of people diagnosed with HIV have had an HIV test, of whom 28% were positive. Couples of MSM with a positive HIV diagnosis had a lower testing rate, which indicates more effective strategies need to be carried out to improve couples HIV testing among Chinese MSM.
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Affiliation(s)
- Ci Zhang
- Xiangya School of Nursing, Central South University, Changsha, Hunan Province, China
- Xiangya Center for Evidence-Based Nursing Practice & Healthcare Innovation (A JBI Affiliated Group), Changsha, Hunan Province, China
| | - Han-Zhu Qian
- Xiangya School of Nursing, Central South University, Changsha, Hunan Province, China
- School of Public Health, Yale University, New Haven, Connecticut, United States of America
| | - Xi Chen
- Hunan Provincial Central for Disease Control and Prevention, Changsha, Hunan Province, China
| | - Scottie Bussell
- Department of Health and Human Services, Parker Indian Hospital, Parker, Arizona, United States of America
| | - Yan Shen
- Xiangya School of Nursing, Central South University, Changsha, Hunan Province, China
- Xiangya Center for Evidence-Based Nursing Practice & Healthcare Innovation (A JBI Affiliated Group), Changsha, Hunan Province, China
| | - Honghong Wang
- Xiangya School of Nursing, Central South University, Changsha, Hunan Province, China
- Xiangya Center for Evidence-Based Nursing Practice & Healthcare Innovation (A JBI Affiliated Group), Changsha, Hunan Province, China
- * E-mail: (XL); (HW)
| | - Xianhong Li
- Xiangya School of Nursing, Central South University, Changsha, Hunan Province, China
- Xiangya Center for Evidence-Based Nursing Practice & Healthcare Innovation (A JBI Affiliated Group), Changsha, Hunan Province, China
- * E-mail: (XL); (HW)
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Chan PSF, Chidgey A, Lau J, Ip M, Lau JT, Wang Z. Effectiveness of a Novel HIV Self-Testing Service with Online Real-Time Counseling Support (HIVST-Online) in Increasing HIV Testing Rate and Repeated HIV Testing among Men Who Have Sex with Men in Hong Kong: Results of a Pilot Implementation Project. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18020729. [PMID: 33467770 PMCID: PMC7830557 DOI: 10.3390/ijerph18020729] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 12/18/2020] [Accepted: 01/14/2021] [Indexed: 11/16/2022]
Abstract
HIV self-testing (HIVST) with online real-time counseling (HIVST-online) is an evidence-based intervention to increase HIV testing coverage and to ensure linkage to care for men who have sex with men (MSM). A community-based organization (CBO) recruited 122 MSM who had ever used HIVST-online (ever-users) and another 228 new-users from multiple sources and promoted HIVST-online. A free oral fluid-based HIVST kit was sent to all the participants by mail. Experienced HIVST administrators implemented HIVST-online by providing real-time instruction, standard-of-care pre-test and post-test counseling via live-chat application. The number of HIVST-online sessions performed was documented by the administrators. The post-test evaluation was conducted 6 months after the pre-test survey. At month 6, 63.1% of ever-users and 40.4% of new-users received HIVST-online. Taking other types of HIV testing into account, 79.4% of ever-users and 58.6% of new-users being followed up at month 6 received any HIV testing during the project period. Ever-users were more likely to receive HIVST-online and any HIV testing as compared to new-users. Four HIVST-online users were screened to be HIV positive and linked to the treatment. The process evaluation of HIVST-online was positive. Implementation of HIVST-online was helpful to improve HIV testing coverage and repeated HIV testing among Chinese MSM. A larger scale implementation should be considered.
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Affiliation(s)
- Paul Shing-fong Chan
- JC School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China; (P.S.-f.C.); (M.I.)
| | | | - Jason Lau
- AIDS Concern, Hong Kong, China; (A.C.); (J.L.)
| | - Mary Ip
- JC School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China; (P.S.-f.C.); (M.I.)
| | - Joseph T.F. Lau
- JC School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China; (P.S.-f.C.); (M.I.)
- Correspondence: (J.T.F.L.); (Z.W.)
| | - Zixin Wang
- JC School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China; (P.S.-f.C.); (M.I.)
- Correspondence: (J.T.F.L.); (Z.W.)
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10
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Hughes CS, Brown J, Murombedzi C, Chirenda T, Chareka G, Mhlanga F, Mateveke B, Gitome S, Makurumure T, Matubu A, Mgodi N, Chirenje Z, Kahn JG. Estimated costs for the delivery of safer conception strategies for HIV-discordant couples in Zimbabwe: a cost analysis. BMC Health Serv Res 2020; 20:940. [PMID: 33046066 PMCID: PMC7552466 DOI: 10.1186/s12913-020-05784-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 09/30/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND In recent years, safer conception strategies have been developed to help HIV-serodiscordant couples conceive a child without transmitting HIV to the seronegative partner. The SAFER clinical trial assessed implementation of these strategies in Zimbabwe. METHODS As a part of the SAFER study, we estimated the costs (in 2017 $US) associated with individual and combination strategies, in the trial setting and real-world practice, from a healthcare system perspective. Safer conception strategies included: 1) ART with frequent viral load testing until achieving undetectable viral load (ART-VL); 2) daily oral pre-exposure prophylaxis (PrEP); 3) semen-washing with intrauterine insemination; and 4) manual self-insemination at home. For costs in the trial, we used a micro-costing approach, including a time and motion study to quantify personnel effort, and estimated the cost per couple for individual and combination strategies for a mean of 6 months of safer services. For real-world practice, we modeled costs for three implementation scenarios, representing differences from the trial in input prices (paid by the Ministry of Health and Child Care [MOHCC]), intervention intensity, and increments to current HIV prevention and treatment practices and guidelines. We used one-way sensitivity analyses to assess the impact of uncertainty in input variables. RESULTS Individual strategy costs were $769-$1615 per couple in the trial; $185-$563 if using MOHCC prices. Under the target intervention intensity and using MOHCC prices, individual strategy costs were $73-$360 per couple over and above the cost of current HIV clinical practices. The cost of delivering the most commonly selected combination, ART-VL plus PrEP, ranged from $166-$517 per couple under the three real-world scenarios. Highest costs were for personnel, lab tests, and strategy-specific consumables, in variable proportions by clinical strategy and analysis scenario. Total costs were most affected by uncertainty in the price of PrEP, number of semen-washing attempts, and scale-up of semen-washing capacity. CONCLUSIONS Safer conception methods have costs that may be affordable in many low-resource settings. These cost data will help implementers and policymakers add safer conception services. Cost-effectiveness analysis is needed to assess value for money for safer conception services overall and for safer strategy combinations. TRIAL REGISTRATION Registry Name: Clinicaltrials.gov. TRIAL REGISTRATION NUMBER NCT03049176 . Registration date: February 9, 2017.
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Affiliation(s)
- Carolyn Smith Hughes
- Institute for Global Health Sciences, University of California, 550 16th Street, 3rd Floor, San Francisco, 94158, USA.
| | - Joelle Brown
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, USA
- Department of Epidemiology and Biostatistics, University of California, San Francisco, USA
| | - Caroline Murombedzi
- College of Health Sciences Clinical Trials Research Centre, University of Zimbabwe, Harare, Zimbabwe
| | - Thandiwe Chirenda
- College of Health Sciences Clinical Trials Research Centre, University of Zimbabwe, Harare, Zimbabwe
| | - Gift Chareka
- College of Health Sciences Clinical Trials Research Centre, University of Zimbabwe, Harare, Zimbabwe
| | - Felix Mhlanga
- College of Health Sciences Clinical Trials Research Centre, University of Zimbabwe, Harare, Zimbabwe
| | | | - Serah Gitome
- Centre for Microbiology Research, Kenya Medical Research Institute, Nairobi, Kenya
| | | | - Allen Matubu
- College of Health Sciences Clinical Trials Research Centre, University of Zimbabwe, Harare, Zimbabwe
| | - Nyaradzo Mgodi
- College of Health Sciences Clinical Trials Research Centre, University of Zimbabwe, Harare, Zimbabwe
| | - Zvavahera Chirenje
- College of Health Sciences Clinical Trials Research Centre, University of Zimbabwe, Harare, Zimbabwe
| | - James G Kahn
- Department of Epidemiology and Biostatistics, University of California, San Francisco, USA
- Philip R. Lee Institute for Health Policy Studies, University of California, San Francisco, San Francisco, USA
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11
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Coudray M, Kiplagat S, Saumell F, Madhivanan P. Sexually transmitted infections among high-risk populations that use treatment as prevention or pre-exposure prophylaxis: a protocol for a systematic review. BMJ Open 2019; 9:e032054. [PMID: 31811008 PMCID: PMC6924850 DOI: 10.1136/bmjopen-2019-032054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND Among men who have sex with men, pre-exposure prophylaxis (PrEP) reduces the risk of HIV by 95%. Based on the documented benefits, the Centre for Disease Control and Prevention has recommended PrEP as a prevention method for high-risk groups. Moreover, for those HIV-infected individuals, antiretroviral therapy has been shown to serve as both as a treatment and prevention method for HIV. METHODS AND ANALYSIS This systematic review protocol was reported according to the Preferred Reporting Items for Systematic reviews and Analyses (PRISMA) P framework. Medline (1980-present), Embase (1980-present), CINAHL (1980-present), Cochrane Central Register of Controlled Trials and clinicaltrials.gov will be used to identify relevant articles based on a piloted search strategy. Peer-reviewed observational and experimental studies will be included. A narrative style will be used to describe descriptive data. A meta-analysis will be conducted if heterogeneity is not significant. ETHICS AND DISSEMINATION Recent evidence suggests that there is an increased risk of sexually transmitted infections (STIs) among high-risk persons that use PrEP. Furthermore, there is a paucity of data on the relationship of treatment as prevention and incidence of STIs. The findings of this review will assess this emerging public health phenomenon and serve to inform future public health policy. No formal ethical review is required for this protocol. All findings will be published in a peer reviewed journal. PROTOCOL REGISTRATION NUMBER CRD42019128720.
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Affiliation(s)
- Makella Coudray
- Epidemiology, Florida International University, Miami, Florida, USA
| | - Sandra Kiplagat
- Epidemiology, Florida International University, Miami, Florida, USA
| | - Franklin Saumell
- Epidemiology, Florida International University, Miami, Florida, USA
| | - Purnima Madhivanan
- Health Promotion Sciences, Mel & Enid Zuckerman College of Public Health, University of Arizona, Tucson, Arizona, United States
- Internal Medicine, Division of Infectious Diseases, College of Medicine, University of Arizona, Tucson, Arizona, United States
- Family & Community Medicine, College of Medicine, University of Arizona, Tucson, Arizona, United States
- Public Health Research Institute of India, Mysore, Karnataka, India
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12
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LeMessurier J, Traversy G, Varsaneux O, Weekes M, Avey MT, Niragira O, Gervais R, Guyatt G, Rodin R. Risk of sexual transmission of human immunodeficiency virus with antiretroviral therapy, suppressed viral load and condom use: a systematic review. CMAJ 2019; 190:E1350-E1360. [PMID: 30455270 DOI: 10.1503/cmaj.180311] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/20/2018] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND The Public Health Agency of Canada reviewed sexual transmission of HIV between serodiscordant partners to support examination of the criminal justice system response to HIV nondisclosure by the Department of Justice of Canada. We sought to determine HIV transmission risk when an HIV-positive partner takes antiretroviral therapy, has a suppressed viral load or uses condoms. METHODS We conducted an overview and systematic review update by searching MEDLINE and other databases (Jan. 1, 2007, to Mar. 13, 2017; and Nov. 1, 2012, to Apr. 27, 2017, respectively). We considered reviews and studies about absolute risk of sexual transmission of HIV between serodiscordant partners to be eligible for inclusion. We used A Measurement Tool to Assess Systematic Reviews (AMSTAR) for review quality, Quality in Prognosis Studies (QUIPS) instrument for study risk of bias and then the Grading of Recommendations, Assessment, Development and Evaluation (GRADE) approach to assess the quality of evidence across studies. We calculated HIV incidence per 100 person-years with 95% confidence intervals (CIs). We assigned risk categories according to potential for and evidence of HIV transmission. RESULTS We identified 12 reviews. We selected 1 review to estimate risk of HIV transmission for condom use without antiretroviral therapy (1.14 transmissions/100 person-years, 95% CI 0.56-2.04; low risk). We identified 11 studies with 23 transmissions over 10 511 person-years with antiretroviral therapy (0.22 transmissions/ 100 person-years, 95% CI 0.14-0.33; low risk). We found no transmissions with antiretroviral therapy and a viral load of less than 200 copies/mL across consecutive measurements 4 to 6 months apart (0.00 transmissions/100 person-years, 95% CI 0.00-0.28; negligible risk regardless of condom use). INTERPRETATION Based on high-quality evidence, there is a negligible risk of sexual transmission of HIV when an HIV-positive sex partner adheres to antiretroviral therapy and maintains a suppressed viral load of less than 200 copies/mL measured every 4 to 6 months. Sexual transmissions of HIV have occurred when viral load was more than 200 copies/mL with antiretroviral therapy or condoms alone were used, although the risk remains low. These findings will help to support patient and clinician decision-making, affect public health case management and contact tracing, and inform justice system responses to HIV nondisclosure.
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Affiliation(s)
- Jennifer LeMessurier
- Centre for Communicable Diseases and Infection Control (Traversy, Varsaneux, Weekes, Avey, Niragira, Gervais, Rodin), Public Health Agency of Canada; Department of Family Medicine (LeMessurier) and School of Epidemiology and Public Health (LeMessurier), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence, and Impact (Guyatt), McMaster University, Hamilton, Ont
| | - Gregory Traversy
- Centre for Communicable Diseases and Infection Control (Traversy, Varsaneux, Weekes, Avey, Niragira, Gervais, Rodin), Public Health Agency of Canada; Department of Family Medicine (LeMessurier) and School of Epidemiology and Public Health (LeMessurier), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence, and Impact (Guyatt), McMaster University, Hamilton, Ont
| | - Olivia Varsaneux
- Centre for Communicable Diseases and Infection Control (Traversy, Varsaneux, Weekes, Avey, Niragira, Gervais, Rodin), Public Health Agency of Canada; Department of Family Medicine (LeMessurier) and School of Epidemiology and Public Health (LeMessurier), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence, and Impact (Guyatt), McMaster University, Hamilton, Ont
| | - Makenzie Weekes
- Centre for Communicable Diseases and Infection Control (Traversy, Varsaneux, Weekes, Avey, Niragira, Gervais, Rodin), Public Health Agency of Canada; Department of Family Medicine (LeMessurier) and School of Epidemiology and Public Health (LeMessurier), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence, and Impact (Guyatt), McMaster University, Hamilton, Ont
| | - Marc T Avey
- Centre for Communicable Diseases and Infection Control (Traversy, Varsaneux, Weekes, Avey, Niragira, Gervais, Rodin), Public Health Agency of Canada; Department of Family Medicine (LeMessurier) and School of Epidemiology and Public Health (LeMessurier), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence, and Impact (Guyatt), McMaster University, Hamilton, Ont
| | - Oscar Niragira
- Centre for Communicable Diseases and Infection Control (Traversy, Varsaneux, Weekes, Avey, Niragira, Gervais, Rodin), Public Health Agency of Canada; Department of Family Medicine (LeMessurier) and School of Epidemiology and Public Health (LeMessurier), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence, and Impact (Guyatt), McMaster University, Hamilton, Ont
| | - Robert Gervais
- Centre for Communicable Diseases and Infection Control (Traversy, Varsaneux, Weekes, Avey, Niragira, Gervais, Rodin), Public Health Agency of Canada; Department of Family Medicine (LeMessurier) and School of Epidemiology and Public Health (LeMessurier), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence, and Impact (Guyatt), McMaster University, Hamilton, Ont
| | - Gordon Guyatt
- Centre for Communicable Diseases and Infection Control (Traversy, Varsaneux, Weekes, Avey, Niragira, Gervais, Rodin), Public Health Agency of Canada; Department of Family Medicine (LeMessurier) and School of Epidemiology and Public Health (LeMessurier), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence, and Impact (Guyatt), McMaster University, Hamilton, Ont
| | - Rachel Rodin
- Centre for Communicable Diseases and Infection Control (Traversy, Varsaneux, Weekes, Avey, Niragira, Gervais, Rodin), Public Health Agency of Canada; Department of Family Medicine (LeMessurier) and School of Epidemiology and Public Health (LeMessurier), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence, and Impact (Guyatt), McMaster University, Hamilton, Ont.
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13
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Nkhoma K, Ahmed A, Alli Z, Sherr L, Harding R. Does sexual behaviour of people with HIV reflect antiretroviral therapy as a preventive strategy? A cross-sectional study among outpatients in Kenya. BMC Public Health 2019; 19:1254. [PMID: 31510974 PMCID: PMC6739960 DOI: 10.1186/s12889-019-7581-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 08/30/2019] [Indexed: 11/10/2022] Open
Abstract
Background The World Health Organisation (WHO) advocates early initiation of HIV treatment as a prevention strategy among people living with HIV. There is strong evidence for the effectiveness of antiretroviral therapy (ART) as a preventive tool for HIV transmission. We aimed to determine the sexual behaviour of HIV outpatients and assess if it reflects the current preventive strategy for HIV transmission. Methods We conducted a cross-sectional study among adult (aged at least 18 years) patients with confirmed HIV diagnosis, and aware of their diagnosis, attending HIV outpatient care in Kenya. Data were gathered through self-report (using validated questionnaires) and file extraction. Multivariate logistic regression assessed the association between sexual risk taking behaviour controlling for gender, HIV clinical stage, HIV treatment status, Tuberculosis (TB) treatment status, and CD4 count. Results We recruited n = 400 participants (n = 280[70%] female gender). The mean age was 39.4 (SD = 9.9) years. The mean CD4 count was 393.7 (SD = 238.2) and ranged from 2 to 1470 cells/mm3. N = 61 (15.64%) were on TB treatment. The majority (n = 366, 91.5%) were on ART. Just over half (n = 202, 50.5%) reported having a sexual partner. Of these n = 33 (16.1%) reported having unprotected sexual intercourse with a person of unknown HIV status in the previous 3 months. Multivariate analysis showed that participants not on ART (HIV treatment) were more likely to report unprotected sexual intercourse compared to those who were on ART (odds ratio .25, 95% CI .09 to .69; P = 0.007). Participants at early stage of HIV infection (stages 1/2) were more likely to report unprotected sexual intercourse compared to participants at advanced HIV infection (stages 3/4) (odds ratio .34, 95% CI .13 to .92; P = 0.035). Males participants were more likely to be involved in sexual risk taking behaviours compared to female participants (odds ratio .36, 95% CI .16 to .82; P = 0.015). TB treatment status, and CD4 count were not significantly associated with sexual risk taking. Conclusion Participants not on ART have more unprotected sexual intercourse than those who are on ART. This calls for the need to scale up coverage and early ART initiation in order to reduce transmission of HIV.
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Affiliation(s)
- Kennedy Nkhoma
- Faculty of Nursing, Midwifery and Palliative Care, Cicely Saunders Institute of Palliative Care Policy and Rehabilitation, Denmark Hill Campus, King's College London, Bessemer Road, London, SE5 9PJ, UK.
| | | | - Zipporah Alli
- Kenya Hospices and Palliative Care Association, Nairobi, Kenya
| | | | - Richard Harding
- Faculty of Nursing, Midwifery and Palliative Care, Cicely Saunders Institute of Palliative Care Policy and Rehabilitation, Denmark Hill Campus, King's College London, Bessemer Road, London, SE5 9PJ, UK
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14
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Mendez‐Lopez A, McKee M, Stuckler D, Granich R, Gupta S, Noori T, Semenza JC. Population uptake and effectiveness of test-and-treat antiretroviral therapy guidelines for preventing the global spread of HIV: an ecological cross-national analysis. HIV Med 2019; 20:501-512. [PMID: 31140715 PMCID: PMC6772052 DOI: 10.1111/hiv.12750] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/14/2019] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Although the benefits of adopting test-and-treat antiretroviral therapy (ART) guidelines that recommend initiation of ART regardless of CD4 cell counts have been demonstrated at the individual level, there is uncertainty about how this translates to the population level. Here, we explored whether adopting ART guidelines recommending earlier treatment initiation improves population ART access and viral suppression and reduces overall disease transmission. METHODS Data on ART initiation guidelines and treatment coverage, viral suppression, and HIV incidence from 37 European and Central Asian countries were collected from the European Centre for Disease Prevention and Control and the Global HIV Policy Watch and HIV 90-90-90 Watch databases. We used multivariate linear regression models to quantify the association of ART initiation guidelines with population ART access, viral suppression, and HIV incidence, adjusting for potential confounding factors. RESULTS Test-and-treat policies were associated with 15.2 percentage points (pp) [95% confidence interval (CI) 0.8-29.6 pp; P = 0.039] greater treatment coverage (proportion of HIV-positive people on ART) compared with countries with ART initiation at CD4 cell counts ≤ 350 cells/μL. The presence of test-and-treat policies was associated with 15.8 pp (95% CI 2.4-29.1 pp; P = 0.023) higher viral suppression rates (people on ART virally suppressed) compared with countries with treatment initiation at CD4 counts ≤ 350 cells/μL. ART initiation at CD4 counts ≤ 500 cells/μL did not significantly improve ART coverage compared to initiation at CD4 counts ≤ 350 cells/μL but achieved similar degrees of viral suppression as test-and-treat. CONCLUSIONS Test-and-treat was found to be associated with substantial improvements in population-level access to ART and viral suppression, further strengthening evidence that rapid initiation of treatment will help curb the spread of HIV.
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Affiliation(s)
| | - M McKee
- Department of Public Health & PolicyLondon School of Hygiene & Tropical MedicineLondonUK
| | - D Stuckler
- Department of Public Health & PolicyLondon School of Hygiene & Tropical MedicineLondonUK
- Dondena Research CentreUniversity of BocconiMilanItaly
| | - R Granich
- Independent Public Health ConsultantSan FranciscoCAUSA
| | - S Gupta
- Independent Public Health ConsultantDelhiIndia
| | - T Noori
- European Centre for Disease Prevention and ControlStockholmSweden
| | - JC Semenza
- European Centre for Disease Prevention and ControlStockholmSweden
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15
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Weng YW, Chen IT, Tsai HC, Wu KS, Tseng YT, Sy CL, Chen JK, Lee SSJ, Chen YS. Trend of HIV transmitted drug resistance before and after implementation of HAART regimen restriction in the treatment of HIV-1 infected patients in southern Taiwan. BMC Infect Dis 2019; 19:741. [PMID: 31443633 PMCID: PMC6708193 DOI: 10.1186/s12879-019-4389-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Accepted: 08/19/2019] [Indexed: 12/13/2022] Open
Abstract
Background The use of fixed combination antiretroviral therapy with a low genetic barrier for the treatment of patients infected with human immunodeficiency virus (HIV) may affect the local HIV transmitted drug resistance (TDR) pattern. The present study aimed to investigate changes in the prevalence of HIV TDR following the implementation of a fixed regimen of HIV treatment in Taiwan in 2012. Methods TDR was measured in antiretroviral treatment-naïve HIV-1-infected individuals who participated in voluntary counseling and testing between 2007 and 2015 in southern Taiwan. Antiretroviral resistance mutations were interpreted using the HIVdb program from the Stanford University HIV Drug Resistance Database. Results Sequences were obtained from 377 consecutive individuals between 2007 and 2015. The overall prevalence rates of TDR HIV among the study population from 2007 to 2011 and 2012–2015 were 10.6 and 7.9%, respectively. Among the detected mutations, K103 N and V179D + K103R were more frequently observed after 2012. Four HIV-infected patients with K103 N variants were detected after 2012, and 4 of the 5 patients with V179D + K103R variants were found after 2012. No significant differences were observed in the TDRs among nucleoside reverse transcriptase inhibitors (NRTIs), non-NRTIs (NNRTIs), protease inhibitors, multiple drug resistance, and any drug resistance between period 1 (2007–2011) and period 2 (2012–2015). Conclusions A fixed treatment regimen with zidovudine/lamivudine + efavirenz or nevirapine as first-line therapy for treatment-naïve patients infected with HIV did not significantly increase the TDR during the 4-year follow-up period. Due to the increase in NNRTI resistance associated with mutations after 2012, a longer follow-up period and larger sample size are needed in future studies.
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Affiliation(s)
- Ya-Wei Weng
- Division of Infectious Diseases, Department of Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - I-Tzu Chen
- Division of Infectious Diseases, Department of Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Hung-Chin Tsai
- Division of Infectious Diseases, Department of Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan. .,Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan. .,Department of Parasitology, Kaohsiung Medical University, Kaohsiung, Taiwan. .,Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung, Taiwan.
| | - Kuan-Sheng Wu
- Division of Infectious Diseases, Department of Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.,Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Yu-Ting Tseng
- Division of Infectious Diseases, Department of Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Cheng-Len Sy
- Division of Infectious Diseases, Department of Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Jui-Kuang Chen
- Division of Infectious Diseases, Department of Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Susan Shin-Jung Lee
- Division of Infectious Diseases, Department of Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.,Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Yao-Shen Chen
- Division of Infectious Diseases, Department of Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.,Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
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16
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Mitchell JW, Wu Y, Gamarel KE. Timing and Sequence of Events: HIV Status Disclosure, Condomless Anal Sex, and Sexual Agreement Formation Among Same-Sex Male Couples. JOURNAL OF SEX RESEARCH 2019; 56:728-739. [PMID: 30295545 DOI: 10.1080/00224499.2018.1523361] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Despite the implications for human immunodeficiency virus (HIV) prevention and sexual health, little is known about the timing and chronological order of when same-sex male couples disclose their HIV serostatus, establish a sexual agreement, and first engage in condomless anal sex (CAS) in their relationships. Dyadic data from 357 dyads were used to describe when these respective events occurred; whether members of a couple concurred about when the events happened; and the chronological order of these events. For many, disclosure and CAS happened within the first month, whereas an agreement tended to occur much later (if at all). Couples' concordance of when disclosure and agreement formation happened differed by their serostatus, whereas there was little difference by serostatus for CAS. The chronological order of these events revealed interesting patterns and varied substantially. Although two-thirds of partners reported disclosure had occurred first, some reported events happening on the same day. These findings reveal that the first few months in a same-sex male couple's relationship is a critical time period for when information and decisions about sexual health occur. Suggestions are provided for how current and future HIV prevention efforts could assist couples with their sexual health needs.
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Affiliation(s)
- Jason W Mitchell
- a Myron B. Thompson School of Social Work, Office of Public Health Studies , University of Hawaii at Manoa
| | - Yanyan Wu
- a Myron B. Thompson School of Social Work, Office of Public Health Studies , University of Hawaii at Manoa
| | - Kristi E Gamarel
- b Department of Health Behavior and Health Education , University of Michigan School of Public Health
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17
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Supportive interventions to improve retention on ART in people with HIV in low- and middle-income countries: A systematic review. PLoS One 2018; 13:e0208814. [PMID: 30550574 PMCID: PMC6294385 DOI: 10.1371/journal.pone.0208814] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 11/24/2018] [Indexed: 01/01/2023] Open
Abstract
Objectives To determine whether supportive interventions can increase retention in care for patients on antiretroviral therapy (ART) in low- and middle-income countries (LMIC). Design Systematic review and meta-analysis. Methods We used Cochrane Collaboration methods. We included randomised controlled trials (RCT) and observational studies with comparators conducted in LMIC. Our principal outcomes were retention, mortality and the combined outcome of lost-to-follow-up (LTFU) or death. Results We identified seven studies (published in nine articles); six of the studies were from Sub-Saharan Africa. We found four types of interventions: 1) directly observed therapy plus extra support (“DOT-plus”), 2) community-based adherence support, 3) adherence clubs and 4) extra care for patients with low CD4 count. One RCT of a community-based intervention showed significantly improved retention at 12 months (RR 1.14, 95% CI 1.02 to 1.27), and three observational studies found significantly improved retention for paediatric patients followed for 12 to 36 months (RR 1.07, 95 CI 1.03 to 1.11), and for adult patients at 12 (RR 1.38, 95% CI 1.13 to 1.70) and 60 months (RR 1.07, 95% CI 1.07 to 1.08). One observational study of adherence clubs showed significantly reduced LTFU or mortality (RR 0.20, 95% CI 0.12 to 0.33). A cluster RCT of an extra-care intervention for high-risk patients also showed a significant increase in retention (RR 1.06, 95% CI 1.01 to 1.10), and an observational study of extra nursing care found a significant decrease in LTFU or mortality (RR 0.76, 95% CI 0.66 to 0.87). Conclusions Supportive interventions are associated with increased ART programme retention, but evidence quality is generally low to moderate. The data from this review suggest that programmes addressing psychosocial needs can significantly help retain patients in care.
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18
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Kimmel AD, Bono RS, Keiser O, Sinayobye JD, Estill J, Mujwara D, Tymejczyk O, Nash D. Mathematical modelling to inform 'treat all' implementation in sub-Saharan Africa: a scoping review. J Virus Erad 2018; 4:47-54. [PMID: 30515314 PMCID: PMC6248854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Abstract
OBJECTIVE Despite widespread uptake, only half of sub-Saharan African countries have fully implemented the World Health Organization's 'treat all' policy, hindering achievement of global HIV targets. We examined literature on mathematical modelling studies that sought to inform scale-up and implementation of 'treat all' in sub-Saharan Africa. METHODS We conducted a scoping review, a research synthesis to assess emerging evidence and identify gaps, of peer-reviewed literature, extracting study characteristics on 'treat all' policies and assumptions, setting, key populations, outcomes and findings. Studies were narratively summarised and potential gaps characterised. RESULTS We identified 16 studies examining 'treat all' alone (n=12) or with expanded testing (n=7) and/or care continuum improvements (n=6). Twelve studies examined 'treat all' for Southern African countries, while none did so for Central Africa. Four included the role of resistance; one evaluated any key population. A range of health and economic outcomes were reported, although fewer studies formally assessed budget impact. Fourteen studies involved co-authors with any in-country affiliation; one study also had co-authors with local government affiliation. Overall, 'treat all' improves health outcomes and is cost-effective compared to deferred HIV treatment; 'treat all' with expanded testing or care continuum improvements may provide further health benefits. However, studies generally used optimistic assumptions about the implementation of expanded testing or care continuum improvements. CONCLUSIONS The modelling literature demonstrates improved health and economic benefits of 'treat all'. Using mathematical modelling to inform real-world implementation of 'treat all' requires realistic assumptions about expanded testing and care continuum interventions across a wide range of settings and populations.
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Affiliation(s)
- April D Kimmel
- Department of Health Behavior and Policy, Virginia Commonwealth University,
Richmond VA,
USA
| | - Rose S Bono
- Department of Health Behavior and Policy, Virginia Commonwealth University,
Richmond VA,
USA
| | - Olivia Keiser
- Institute of Global Health, University of Geneva,
Switzerland
| | - Jean D Sinayobye
- Research and Clinical Education Division, Rwanda Military Hospital,
Kigali,
Rwanda
| | | | - Deo Mujwara
- Department of Health Behavior and Policy, Virginia Commonwealth University,
Richmond VA,
USA
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Quintana Y, Gonzalez Martorell EA, Fahy D, Safran C. A Systematic Review on Promoting Adherence to Antiretroviral Therapy in HIV-infected Patients Using Mobile Phone Technology. Appl Clin Inform 2018; 9:450-466. [PMID: 29925099 DOI: 10.1055/s-0038-1660516] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
OBJECTIVE Adherence to antiretroviral therapy (ART) is paramount to successful long-term suppression of human immunodeficiency virus (HIV). For poorly adherent patients with HIV, barriers to remaining adherent may be overcome by the implementation of targeted interventions delivered via mobile devices. This systematic review is focused specifically on mobile phone technologies to deliver adherence interventions in HIV/acquired immunodeficiency syndrome (AIDS) populations. METHODS This review (PROSPERO #CRD42017065131) systematically extracted data from published literature from five databases on mobile phone interventions to improve adherence to ART for HIV. The reported studies had been conducted between 2007 and 2017. Risk of bias was assessed using the Cochrane method ranking each criterion as low, high, or unclear risk of bias. RESULTS Of the 835 articles returned, we identified 26 randomized controlled trials (RCTs), retrospective and prospective cohort trials, or mixed method studies with a comparison group that fit criteria for inclusion. No standard measure of adherence was consistent throughout the examined studies, and assessments by self-report, pill counting, and medication event monitoring system (MEMS) were utilized. The studies reported mixed results, with 17 reporting significant improvements to adherence, 3 reporting improvements without supplying p-values, and 6 reporting no significant change or a reduction in adherence. CONCLUSION The mixed nature of the results exemplifies the need for more comprehensive approaches and larger scale trials to confirm results observed in limited cohort sizes. To better retain satisfactory adherence within the HIV population, and especially in low-resource settings, we recommend that future interventions incorporate multiple strategies: mobile-based reminders, social support structures, and personalized content.
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Affiliation(s)
- Yuri Quintana
- Division of Clinical Informatics, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, United States.,Harvard Medical School, Boston, Massachusetts, United States
| | | | - Darren Fahy
- Division of Clinical Informatics, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, United States
| | - Charles Safran
- Division of Clinical Informatics, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, United States.,Harvard Medical School, Boston, Massachusetts, United States
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Chagomerana MB, Miller WC, Tang JH, Hoffman IF, Mthiko BC, Phulusa J, John M, Jumbe A, Hosseinipour MC. Optimizing prevention of HIV mother to child transmission: Duration of antiretroviral therapy and viral suppression at delivery among pregnant Malawian women. PLoS One 2018; 13:e0195033. [PMID: 29614083 PMCID: PMC5882113 DOI: 10.1371/journal.pone.0195033] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 03/15/2018] [Indexed: 11/18/2022] Open
Abstract
Background Effective antiretroviral therapy during pregnancy minimizes the risk of vertical HIV transmission. Some women present late in their pregnancy for first antenatal visit; whether these women achieve viral suppression by delivery and how suppression varies with time on ART is unclear. Methods We conducted a prospective cohort study of HIV-infected pregnant women initiating antiretroviral therapy for the first time at Bwaila Hospital in Lilongwe, Malawi from June 2015 to November 2016. Multivariable Poisson models with robust variance estimators were used to estimate risk ratios (RR) and 95% confidence intervals (CI) of the association between duration of ART and both viral load (VL) ≥1000 copies/ml and VL ≥40 copies/ml at delivery. Results Of the 252 women who had viral load testing at delivery, 40 (16%) and 78 (31%) had VL ≥1000 copies/ml and VL ≥40 copies/ml, respectively. The proportion of women with poor adherence to ART was higher among women who were on ART for ≤12 weeks (9/50 = 18.0%) than among those who were on ART for 13–35 weeks (18/194 = 9.3%). Compared to women who were on ART for ≤12 weeks, women who were on ART for 13–20 weeks (RR = 0.52; 95% CI: 0.36–0.74) or 21–35 weeks (RR = 0.26; 95% CI: 0.14–0.48) had a lower risk of VL ≥40 copies/ml at delivery. Similar comparisons for VL ≥1000 copies/ml at delivery showed decrease in risk although not significant for those on ART 13–20 weeks. Conclusion Longer duration of ART during pregnancy was associated with suppressed viral load at delivery. Early ANC attendance in pregnancy to facilitate prompt ART initiation for HIV-positive women is essential in the effort to eliminate HIV vertical transmission.
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Affiliation(s)
| | - William C. Miller
- Division of Epidemiology, College of Public Health, The Ohio State University, Columbus, OH, United States of America
| | - Jennifer H. Tang
- UNC Project-Malawi, Kamuzu Central Hospital, Lilongwe, Malawi
- Department of Obstetrics and Gynecology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, United States of America
| | - Irving F. Hoffman
- UNC Project-Malawi, Kamuzu Central Hospital, Lilongwe, Malawi
- Department of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, NC, United States of America
| | - Bryan C. Mthiko
- UNC Project-Malawi, Kamuzu Central Hospital, Lilongwe, Malawi
| | - Jacob Phulusa
- UNC Project-Malawi, Kamuzu Central Hospital, Lilongwe, Malawi
| | - Mathias John
- UNC Project-Malawi, Kamuzu Central Hospital, Lilongwe, Malawi
| | - Allan Jumbe
- UNC Project-Malawi, Kamuzu Central Hospital, Lilongwe, Malawi
| | - Mina C. Hosseinipour
- UNC Project-Malawi, Kamuzu Central Hospital, Lilongwe, Malawi
- Department of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, NC, United States of America
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21
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Guillon M, Celse M, Geoffard PY. Economic and public health consequences of delayed access to medical care for migrants living with HIV in France. THE EUROPEAN JOURNAL OF HEALTH ECONOMICS : HEPAC : HEALTH ECONOMICS IN PREVENTION AND CARE 2018; 19:327-340. [PMID: 28343331 DOI: 10.1007/s10198-017-0886-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2016] [Accepted: 03/13/2017] [Indexed: 05/26/2023]
Abstract
In 2013, migrants accounted for 46% of newly diagnosed cases of HIV (human immunodeficiency virus) infection in France. These populations meet with specific obstacles leading to late diagnosis and access to medical care. Delayed access to care (ATC) for HIV-infected migrants reduces their life expectancy and quality of life. Given the reduction of infectivity under antiretroviral (ARV) treatment, delayed ATC for HIV-infected migrants may also hinder the control of the HIV epidemic. The objective of this study is to measure the public health and economic consequences of delayed ATC for migrants living with HIV in France. Using a healthcare payer perspective, our model compares the lifetime averted infections and costs of early vs. late ATC for migrants living with HIV in France. Early and late ATC are defined by an entry into care with a CD4 cell count of 350 and 100/mm3, respectively. Our results show that an early ATC is dominant, even in the worst-case scenario. In the most favorable scenario, early ATC generates an average net saving of €198,000 per patient, and prevents 0.542 secondary infection. In the worst-case scenario, early ATC generates an average net saving of €32,000 per patient, and prevents 0.299 secondary infection. These results are robust to various adverse changes in key parameters and to a definition of late ATC as an access to care at a CD4 level of 200/mm3. In addition to individual health benefits, improving ATC for migrants living with HIV proves efficient in terms of public health and economics. These results stress the benefit of ensuring early ATC for all individuals living with HIV in France.
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Affiliation(s)
- Marlène Guillon
- Université Clermont Auvergne, CNRS, CERDI and Paris School of Economics, 63-65 Boulevard François Mitterrand, 63000, Clermont-Ferrand, France.
| | - Michel Celse
- Conseil National du Sida-French National AIDS Council, 39-43 Quai André Citroën, 75902, Paris Cedex 15, France
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22
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Drainoni ML, Biancarelli DL, Leech AA, Sullivan M, Bazzi AR. Implementing a Pre-Exposure Prophylaxis Intervention for Safer Conception among HIV Serodiscordant Couples: Recommendations for Health Care Providers. JOURNAL OF HEALTH DISPARITIES RESEARCH AND PRACTICE 2018; 11:19-33. [PMID: 30467527 PMCID: PMC6241314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Couples in HIV serodiscordant relationships frequently desire children. Although partners who are virally suppressed pose almost no risk of transmitting HIV to their partners, partners who are inconsistently on therapy may transmit HIV to their partners when attempting to conceive. Pre-exposure prophylaxis (PrEP) is an available safer conception strategy for these couples but is not consistently offered. We sought to better understand barriers to PrEP implementation for couples seeking conception and patient perceptions on what providers could do to encourage use. We conducted in-depth, qualitative interviews with 11 participants representing six couples taking PrEP for safer conception in a safety-net hospital in New England. Semi-structured qualitative interviews assessed the following: Relationship nature and contextual factors; attitudes and perceptions regarding PrEP for safer conception; experience within health care systems related to HIV and PrEP; and facilitators, barriers, and other experiences using PrEP for safer conception. Four key themes have important implications for implementation of PrEP for safer conception: Knowledge and understanding gaps regarding HIV and PrEP among both members of the couple, role of insurance and financing in decision-making, learning to manage and adhere to a treatment plan, and the need for providers to enhance knowledge and offer further support. Addressing barriers to safer conception strategies at multiple levels is needed to prevent HIV transmission within serodiscordant couples who desire children. Providers can play an important role in lowering these barriers through the use of multiple strategies.
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Navarra AMD, Gwadz MV, Whittemore R, Bakken SR, Cleland CM, Burleson W, Jacobs SK, Melkus GD. Health Technology-Enabled Interventions for Adherence Support and Retention in Care Among US HIV-Infected Adolescents and Young Adults: An Integrative Review. AIDS Behav 2017; 21:3154-3171. [PMID: 28776275 DOI: 10.1007/s10461-017-1867-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The objective of this integrative review was to describe current US trends for health technology-enabled adherence interventions among behaviorally HIV-infected youth (ages 13-29 years), and present the feasibility and efficacy of identified interventions. A comprehensive search was executed across five electronic databases (January 2005-March 2016). Of the 1911 identified studies, nine met the inclusion criteria of quantitative or mixed methods design, technology-enabled adherence and or retention intervention for US HIV-infected youth. The majority were small pilots. Intervention dose varied between studies applying similar technology platforms with more than half not informed by a theoretical framework. Retention in care was not a reported outcome, and operationalization of adherence was heterogeneous across studies. Despite these limitations, synthesized findings from this review demonstrate feasibility of computer-based interventions, and initial efficacy of SMS texting for adherence support among HIV-infected youth. Moving forward, there is a pressing need for the expansion of this evidence base.
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Affiliation(s)
- Ann-Margaret Dunn Navarra
- Center for Drug Use and HIV Research, New York University Rory Meyers College of Nursing, 433 First Avenue Room 410, New York, NY, 10010, USA.
| | - Marya Viorst Gwadz
- Center for Drug Use and HIV Research, New York University Rory Meyers College of Nursing, 433 First Avenue Room 410, New York, NY, 10010, USA
| | - Robin Whittemore
- School of Nursing, Yale University, 400 West Campus Drive, Orange, CT, 06477, USA
| | - Suzanne R Bakken
- Department of Biomedical Informatics, Columbia University School of Nursing, 617 West 168th Street, New York, NY, 10032, USA
| | - Charles M Cleland
- Center for Drug Use and HIV Research, New York University Rory Meyers College of Nursing, 433 First Avenue Room 410, New York, NY, 10010, USA
| | - Winslow Burleson
- Center for Drug Use and HIV Research, New York University Rory Meyers College of Nursing, 433 First Avenue Room 410, New York, NY, 10010, USA
| | - Susan Kaplan Jacobs
- Elmer Holmes Bobst Library, New York University Libraries, 70 Washington Square South, New York, NY, 10012, USA
| | - Gail D'Eramo Melkus
- Center for Drug Use and HIV Research, New York University Rory Meyers College of Nursing, 433 First Avenue Room 410, New York, NY, 10010, USA
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Elul B, Lamb MR, Lahuerta M, Abacassamo F, Ahoua L, Kujawski SA, Tomo M, Jani I. A combination intervention strategy to improve linkage to and retention in HIV care following diagnosis in Mozambique: A cluster-randomized study. PLoS Med 2017; 14:e1002433. [PMID: 29136001 PMCID: PMC5685437 DOI: 10.1371/journal.pmed.1002433] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 10/10/2017] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Concerning gaps in the HIV care continuum compromise individual and population health. We evaluated a combination intervention strategy (CIS) targeting prevalent barriers to timely linkage and sustained retention in HIV care in Mozambique. METHODS AND FINDINGS In this cluster-randomized trial, 10 primary health facilities in the city of Maputo and Inhambane Province were randomly assigned to provide the CIS or the standard of care (SOC). The CIS included point-of-care CD4 testing at the time of diagnosis, accelerated ART initiation, and short message service (SMS) health messages and appointment reminders. A pre-post intervention 2-sample design was nested within the CIS arm to assess the effectiveness of CIS+, an enhanced version of the CIS that additionally included conditional non-cash financial incentives for linkage and retention. The primary outcome was a combined outcome of linkage to care within 1 month and retention at 12 months after diagnosis. From April 22, 2013, to June 30, 2015, we enrolled 2,004 out of 5,327 adults ≥18 years of age diagnosed with HIV in the voluntary counseling and testing clinics of participating health facilities: 744 (37%) in the CIS group, 493 (25%) in the CIS+ group, and 767 (38%) in the SOC group. Fifty-seven percent of the CIS group achieved the primary outcome versus 35% in the SOC group (relative risk [RR]CIS vs SOC = 1.58, 95% CI 1.05-2.39). Eighty-nine percent of the CIS group linked to care on the day of diagnosis versus 16% of the SOC group (RRCIS vs SOC = 9.13, 95% CI 1.65-50.40). There was no significant benefit of adding financial incentives to the CIS in terms of the combined outcome (55% of the CIS+ group achieved the primary outcome, RRCIS+ vs CIS = 0.96, 95% CI 0.81-1.16). Key limitations include the use of existing medical records to assess outcomes, the inability to isolate the effect of each component of the CIS, non-concurrent enrollment of the CIS+ group, and exclusion of many patients newly diagnosed with HIV. CONCLUSIONS The CIS showed promise for making much needed gains in the HIV care continuum in our study, particularly in the critical first step of timely linkage to care following diagnosis. TRIAL REGISTRATION ClinicalTrials.gov NCT01930084.
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Affiliation(s)
- Batya Elul
- ICAP at Columbia University, Mailman School of Public Health, Columbia University, New York, New York, United States of America
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, New York, United States of America
- * E-mail:
| | - Matthew R. Lamb
- ICAP at Columbia University, Mailman School of Public Health, Columbia University, New York, New York, United States of America
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, New York, United States of America
| | - Maria Lahuerta
- ICAP at Columbia University, Mailman School of Public Health, Columbia University, New York, New York, United States of America
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, New York, United States of America
| | | | - Laurence Ahoua
- ICAP at Columbia University, Mailman School of Public Health, Columbia University, New York, New York, United States of America
| | - Stephanie A. Kujawski
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, New York, United States of America
| | - Maria Tomo
- Center for Collaboration in Health, Maputo, Mozambique
| | - Ilesh Jani
- Instituto Nacional de Saúde, Maputo, Mozambique
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Mbeye NM, Adetokunboh O, Negussie E, Kredo T, Wiysonge CS. Shifting tasks from pharmacy to non-pharmacy personnel for providing antiretroviral therapy to people living with HIV: a systematic review and meta-analysis. BMJ Open 2017; 7:e015072. [PMID: 28851770 PMCID: PMC5724105 DOI: 10.1136/bmjopen-2016-015072] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVES Lay people or non-pharmacy health workers with training could dispense antiretroviral therapy (ART) in resource-constrained countries, freeing up time for pharmacists to focus on more technical tasks. We assessed the effectiveness of such task-shifting in low-income and middle-income countries. METHOD We conducted comprehensive searches of peer-reviewed and grey literature. Two authors independently screened search outputs, selected controlled trials, extracted data and resolved discrepancies by consensus. We performed random-effects meta-analysis and assessed certainty of evidence using the Grading of Recommendations, Assessment, Development and Evaluation (GRADE) approach. RESULTS Three studies with 1993 participants met the inclusion criteria, including two cluster trials conducted in Kenya and Uganda and an individually randomised trial conducted in Brazil. We found very low certainty evidence regarding mortality due to the low number of events. Therefore, we are uncertain whether there is a true increase in mortality as the effect size suggests, or a reduction in mortality between pharmacy and non-pharmacy models of dispensing ART (risk ratio (RR) 1.86, 95% CI 0.44 to 7.95, n=1993, three trials, very low certainty evidence). There may be no differences between pharmacy and non-pharmacy models of dispensing ART on virological failure (risk ratio (RR) 0.92, 95% CI 0.73 to 1.15, n=1993, three trials, low certainty evidence) and loss to follow-up (RR 1.13, 95% CI 0.68 to 1.91, n=1993. three trials, low certainty evidence). We found some evidence that costs may be reduced for the patient and health system when task-shifting is undertaken. CONCLUSIONS The low certainty regarding the evidence implies a high likelihood that further research may find the effects of the intervention to be substantially different from our findings. If resource-constrained countries decide to shift ART dispensing and distribution from pharmacy to non-pharmacy personnel, this should be accompanied by robust monitoring and impact evaluation.
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Affiliation(s)
- Nyanyiwe Masingi Mbeye
- Cochrane South Africa, South African Medical Research Council, Cape Town, Western Cape, South Africa
- Centre for Evidence-based Health Care, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
- College of Medicine, University of Malawi, Blantyre, Malawi
| | - Olatunji Adetokunboh
- Cochrane South Africa, South African Medical Research Council, Cape Town, Western Cape, South Africa
- Centre for Evidence-based Health Care, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | | | - Tamara Kredo
- Cochrane South Africa, South African Medical Research Council, Cape Town, Western Cape, South Africa
- Division of Clinical Pharmacology, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Charles Shey Wiysonge
- Cochrane South Africa, South African Medical Research Council, Cape Town, Western Cape, South Africa
- Centre for Evidence-based Health Care, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
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Bazzi AR, Leech AA, Biancarelli DL, Sullivan M, Drainoni ML. Experiences Using Pre-Exposure Prophylaxis for Safer Conception Among HIV Serodiscordant Heterosexual Couples in the United States. AIDS Patient Care STDS 2017; 31:348-355. [PMID: 28719229 DOI: 10.1089/apc.2017.0098] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Antiretroviral pre-exposure prophylaxis (PrEP) is a promising HIV prevention strategy for HIV serodiscordant couples (HIV-infected male, uninfected female) seeking safer conception. However, most research on PrEP for safer conception has focused on couples in sub-Saharan Africa; little is known about the perspectives or experiences of heterosexual couples in the United States. We conducted qualitative interviews with six couples (six women and five of their male partners) receiving PrEP for conception services at an urban safety net hospital in the US Northeast. In-depth interview guides explored couple relationships and contextual factors and attitudes, perceptions, and decision-making processes surrounding PrEP for safer conception. Thematic analyses focused on identifying the following emergent themes. We found that couple relationships were situated within broader social and cultural contexts of immigration, family, and community that shaped their experiences with HIV and serodiscordant relationship status. Despite strong partner support within relationships, HIV stigma and disapproval of serodiscordant relationships contributed to couples' feelings of social isolation and subsequent aspirations to have "normal" families. By enabling "natural" conception through condomless sex, PrEP for safer conception provided a sense of enhanced relationship intimacy. Couples called for increasing public awareness of PrEP through positive messaging as a way to combat HIV stigma. Findings suggest that relationship dynamics and broader social contexts appear to shape HIV serodiscordant couples' fertility desires and motivations to use PrEP. However, increased public awareness of PrEP for safer conception may be needed to combat HIV stigma at the community level.
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Affiliation(s)
- Angela R. Bazzi
- Department of Community Health Sciences, Boston University School of Public Health, Boston, Massachusetts
| | - Ashley A. Leech
- Department of Health Law, Policy & Management, Boston University School of Public Health, Boston, Massachusetts
- Center for the Evaluation of Value and Risk in Health, Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, Boston, Massachusetts
| | - Dea L. Biancarelli
- Department of Health Law, Policy & Management, Boston University School of Public Health, Boston, Massachusetts
| | - Meg Sullivan
- Section of Infectious Diseases, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts
| | - Mari-Lynn Drainoni
- Department of Health Law, Policy & Management, Boston University School of Public Health, Boston, Massachusetts
- Section of Infectious Diseases, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts
- Center for Healthcare Organization and Implementation Research, Edith Nourse Rogers Memorial Veterans Hospital, Bedford, Massachusetts
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McKenney J, Chen A, Hoover KW, Kelly J, Dowdy D, Sharifi P, Sullivan PS, Rosenberg ES. Optimal costs of HIV pre-exposure prophylaxis for men who have sex with men. PLoS One 2017; 12:e0178170. [PMID: 28570572 PMCID: PMC5453430 DOI: 10.1371/journal.pone.0178170] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Accepted: 05/08/2017] [Indexed: 11/23/2022] Open
Abstract
Introduction Men who have sex with men (MSM) are disproportionately affected by HIV due to their increased risk of infection. Oral pre-exposure prophylaxis (PrEP) is a highly effictive HIV-prevention strategy for MSM. Despite evidence of its effectiveness, PrEP uptake in the United States has been slow, in part due to its cost. As jurisdictions and health organizations begin to think about PrEP scale-up, the high cost to society needs to be understood. Methods We modified a previously-described decision-analysis model to estimate the cost per quality-adjusted life-year (QALY) gained, over a 1-year duration of PrEP intervention and lifetime time horizon. Using updated parameter estimates, we calculated: 1) the cost per QALY gained, stratified over 4 strata of PrEP cost (a function of both drug cost and provider costs); and 2) PrEP drug cost per year required to fall at or under 4 cost per QALY gained thresholds. Results When PrEP drug costs were reduced by 60% (with no sexual disinhibition) to 80% (assuming 25% sexual disinhibition), PrEP was cost-effective (at <$100,000 per QALY averted) in all scenarios of base-case or better adherence, as long as the background HIV prevalence was greater than 10%. For PrEP to be cost saving at base-case adherence/efficacy levels and at a background prevalence of 20%, drug cost would need to be reduced to $8,021 per year with no disinhibition, and to $2,548 with disinhibition. Conclusion Results from our analysis suggest that PrEP drug costs need to be reduced in order to be cost-effective across a range of background HIV prevalence. Moreover, our results provide guidance on the pricing of generic emtricitabine/tenofovir disoproxil fumarate, in order to provide those at high risk for HIV an affordable prevention option without financial burden on individuals or jurisdictions scaling-up coverage.
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Affiliation(s)
- Jennie McKenney
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America
- * E-mail:
| | - Anders Chen
- Department of Medicine, University of Washington, Seattle, Washington, United States of America
| | - Karen W. Hoover
- Division of HIV/AIDS Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, CDC, Atlanta, Georgia, United States of America
| | - Jane Kelly
- HIV/AIDS Epidemiology Unit, Georgia Department of Public Health, Atlanta, Georgia, United States of America
| | - David Dowdy
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America
| | - Parastu Sharifi
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America
| | - Patrick S. Sullivan
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America
| | - Eli S. Rosenberg
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America
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Eshleman SH, Wilson EA, Zhang XC, Ou SS, Piwowar-Manning E, Eron JJ, McCauley M, Gamble T, Gallant JE, Hosseinipour MC, Kumarasamy N, Hakim JG, Kalonga B, Pilotto JH, Grinsztejn B, Godbole SV, Chotirosniramit N, Santos BR, Shava E, Mills LA, Panchia R, Mwelase N, Mayer KH, Chen YQ, Cohen MS, Fogel JM. Virologic outcomes in early antiretroviral treatment: HPTN 052. HIV CLINICAL TRIALS 2017; 18:100-109. [PMID: 28385131 DOI: 10.1080/15284336.2017.1311056] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
INTRODUCTION The HIV Prevention Trials Network (HPTN) 052 trial demonstrated that early antiretroviral therapy (ART) prevented 93% of HIV transmission events in serodiscordant couples. Some linked infections were observed shortly after ART initiation or after virologic failure. OBJECTIVE To evaluate factors associated with time to viral suppression and virologic failure in participants who initiated ART in HPTN 052. METHODS 1566 participants who had a viral load (VL) > 400 copies/mL at enrollment were included in the analyses. This included 832 in the early ART arm (CD4 350-550 cells/mm3 at ART initiation) and 734 in the delayed ART arm (204 with a CD4 < 250 cells/mm3 at ART initiation; 530 with any CD4 at ART initiation). Viral suppression was defined as two consecutive VLs ≤ 400 copies/mL after ART initiation; virologic failure was defined as two consecutive VLs > 1000 copies/mL > 24 weeks after ART initiation. RESULTS Overall, 93% of participants achieved viral suppression by 12 months. The annual incidence of virologic failure was 3.6%. Virologic outcomes were similar in the two study arms. Longer time to viral suppression was associated with younger age, higher VL at ART initiation, and region (Africa vs. Asia). Virologic failure was strongly associated with younger age, lower educational level, and lack of suppression by three months; lower VL and higher CD4 at ART initiation were also associated with virologic failure. CONCLUSIONS Several clinical and demographic factors were identified that were associated with longer time to viral suppression and virologic failure. Recognition of these factors may help optimize ART for HIV treatment and prevention.
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Affiliation(s)
- Susan H Eshleman
- a Department of Pathology , Johns Hopkins University School of Medicine , Baltimore , MD , USA
| | - Ethan A Wilson
- b Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center , Seattle , WA , USA
| | - Xinyi C Zhang
- b Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center , Seattle , WA , USA
| | - San-San Ou
- b Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center , Seattle , WA , USA
| | - Estelle Piwowar-Manning
- a Department of Pathology , Johns Hopkins University School of Medicine , Baltimore , MD , USA
| | - Joseph J Eron
- c Department of Medicine , University of North Carolina at Chapel Hill , Chapel Hill , NC , USA
| | | | - Theresa Gamble
- e Science Facilitation Department , FHI 360 , Durham , NC , USA
| | | | - Mina C Hosseinipour
- g University of North Carolina at Chapel Hill, Institute for Global Health and Infectious Diseases , Chapel Hill , NC , USA.,h UNC Project-Malawi, Institute for Global Health and Infectious Diseases , Lilongwe , Malawi
| | | | - James G Hakim
- j Department of Medicine , University of Zimbabwe , Harare , Zimbabwe
| | - Ben Kalonga
- k College of Medicine-Johns Hopkins Project , Blantyre , Malawi
| | - Jose H Pilotto
- l Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz , Rio de Janeiro , Brazil
| | - Beatriz Grinsztejn
- m Instituto Nacional de Infectologia Evandro Chagas-INI-Fiocruz , Rio de Janeiro , Brazil
| | | | | | | | - Emily Shava
- q Botswana Harvard AIDS Institute , Gaborone , Botswana
| | - Lisa A Mills
- r Centers for Disease Control and Prevention, Division of HIV/AIDS Prevention and Kenya Medical Research Institute (KEMRI)/CDC Clinical Research Site , Kisumu , Kenya
| | - Ravindre Panchia
- s University of the Witwatersrand, Perinatal HIV Research Unit, Soweto HPTN CRS , Soweto , South Africa
| | - Noluthando Mwelase
- t Clinical HIV Research Unit, Department of Medicine , University of the Witwatersrand , Johannesburg , South Africa
| | - Kenneth H Mayer
- u The Fenway Institute, Fenway Health/Infectious Disease Division, Beth Israel Deaconess Medical Center, Department of Medicine , Harvard Medical School , Boston , MA , USA
| | - Ying Q Chen
- b Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center , Seattle , WA , USA
| | - Myron S Cohen
- c Department of Medicine , University of North Carolina at Chapel Hill , Chapel Hill , NC , USA
| | - Jessica M Fogel
- a Department of Pathology , Johns Hopkins University School of Medicine , Baltimore , MD , USA
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Cohen MS, Chen YQ, McCauley M, Gamble T, Hosseinipour MC, Kumarasamy N, Hakim JG, Kumwenda J, Grinsztejn B, Pilotto JHS, Godbole SV, Chariyalertsak S, Santos BR, Mayer KH, Hoffman IF, Eshleman SH, Piwowar-Manning E, Cottle L, Zhang XC, Makhema J, Mills LA, Panchia R, Faesen S, Eron J, Gallant J, Havlir D, Swindells S, Elharrar V, Burns D, Taha TE, Nielsen-Saines K, Celentano DD, Essex M, Hudelson SE, Redd AD, Fleming TR. Antiretroviral Therapy for the Prevention of HIV-1 Transmission. N Engl J Med 2016; 375:830-9. [PMID: 27424812 PMCID: PMC5049503 DOI: 10.1056/nejmoa1600693] [Citation(s) in RCA: 1128] [Impact Index Per Article: 141.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND An interim analysis of data from the HIV Prevention Trials Network (HPTN) 052 trial showed that antiretroviral therapy (ART) prevented more than 96% of genetically linked infections caused by human immunodeficiency virus type 1 (HIV-1) in serodiscordant couples. ART was then offered to all patients with HIV-1 infection (index participants). The study included more than 5 years of follow-up to assess the durability of such therapy for the prevention of HIV-1 transmission. METHODS We randomly assigned 1763 index participants to receive either early or delayed ART. In the early-ART group, 886 participants started therapy at enrollment (CD4+ count, 350 to 550 cells per cubic millimeter). In the delayed-ART group, 877 participants started therapy after two consecutive CD4+ counts fell below 250 cells per cubic millimeter or if an illness indicative of the acquired immunodeficiency syndrome (i.e., an AIDS-defining illness) developed. The primary study end point was the diagnosis of genetically linked HIV-1 infection in the previously HIV-1-negative partner in an intention-to-treat analysis. RESULTS Index participants were followed for 10,031 person-years; partners were followed for 8509 person-years. Among partners, 78 HIV-1 infections were observed during the trial (annual incidence, 0.9%; 95% confidence interval [CI], 0.7 to 1.1). Viral-linkage status was determined for 72 (92%) of the partner infections. Of these infections, 46 were linked (3 in the early-ART group and 43 in the delayed-ART group; incidence, 0.5%; 95% CI, 0.4 to 0.7) and 26 were unlinked (14 in the early-ART group and 12 in the delayed-ART group; incidence, 0.3%; 95% CI, 0.2 to 0.4). Early ART was associated with a 93% lower risk of linked partner infection than was delayed ART (hazard ratio, 0.07; 95% CI, 0.02 to 0.22). No linked infections were observed when HIV-1 infection was stably suppressed by ART in the index participant. CONCLUSIONS The early initiation of ART led to a sustained decrease in genetically linked HIV-1 infections in sexual partners. (Funded by the National Institute of Allergy and Infectious Diseases; HPTN 052 ClinicalTrials.gov number, NCT00074581 .).
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Affiliation(s)
- Myron S Cohen
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Ying Q Chen
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Marybeth McCauley
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Theresa Gamble
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Mina C Hosseinipour
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Nagalingeswaran Kumarasamy
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - James G Hakim
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Johnstone Kumwenda
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Beatriz Grinsztejn
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Jose H S Pilotto
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Sheela V Godbole
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Suwat Chariyalertsak
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Breno R Santos
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Kenneth H Mayer
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Irving F Hoffman
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Susan H Eshleman
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Estelle Piwowar-Manning
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Leslie Cottle
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Xinyi C Zhang
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Joseph Makhema
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Lisa A Mills
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Ravindre Panchia
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Sharlaa Faesen
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Joseph Eron
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Joel Gallant
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Diane Havlir
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Susan Swindells
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Vanessa Elharrar
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - David Burns
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Taha E Taha
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Karin Nielsen-Saines
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - David D Celentano
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Max Essex
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Sarah E Hudelson
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Andrew D Redd
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
| | - Thomas R Fleming
- From the Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill (M.S.C., M.C.H., I.F.H., J.E.); the Divisions of Vaccine and Infectious Disease (Y.Q.C., X.C.Z.) and Public Health Science (Y.Q.C.) and the Statistical Center for HIV/AIDS Research and Prevention (L.C.), Fred Hutchinson Cancer Research Center, and the Department of Biostatistics, University of Washington (T.R.F.) - both in Seattle; FHI 360, Washington, DC (M.M.), and Durham, NC (T.G.); Y.R. Gaitonde Center for AIDS Research and Education, Chennai (N.K.), and National AIDS Research Institute, Pune (S.V.G.) - both in India; University of Zimbabwe, Harare (J.G.H.); College of Medicine-Johns Hopkins Project, Blantyre, Malawi (J.K.); Instituto de Pesquisa Clinica Evandro Chagas (B.G.) and Hospital Geral de Nova Iguacu and Laboratorio de AIDS e Imunologia Molecular-IOC/Fiocruz (J.H.S.P.), Rio de Janeiro, and Servico de Infectologia, Hospital Nossa Senhora da Conceicao/GHC, Porto Alegre (B.R.S.) - both in Brazil; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand (S.C.); Fenway Institute (K.H.M.) and Harvard School of Public Health (M.E.) - both in Boston; the Departments of Pathology (S.H.E., E.P.-M., S.E.H.) and Medicine (A.D.R.), Johns Hopkins University School of Medicine, the Department of Epidemiology, Bloomberg School of Public Health (T.E.T.), and Johns Hopkins Bloomberg School of Public Health (D.D.C.), Baltimore, and the Division of AIDS (V.E., D.B.) and Laboratory of Immunoregulation (A.D.R.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda - both in Maryland; Botswana Harvard AIDS Institute, Gaborone (J.M.); Centers for Disease Control and Prevention (CDC) Division of HIV/AIDS Prevention/KEMRI-CDC Research and Public Health Collaboration HIV Research Branch, Kisumu, Kenya (L.A.M.); Perinatal HIV Research Unit (R.P.) and Clinical HIV Research Unit, Department of Medicine, Faculty of Health Scien
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Integrated Delivery of Antiretroviral Treatment and Pre-exposure Prophylaxis to HIV-1-Serodiscordant Couples: A Prospective Implementation Study in Kenya and Uganda. PLoS Med 2016; 13:e1002099. [PMID: 27552090 PMCID: PMC4995047 DOI: 10.1371/journal.pmed.1002099] [Citation(s) in RCA: 146] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Accepted: 06/17/2016] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND Antiretroviral-based interventions for HIV-1 prevention, including antiretroviral therapy (ART) to reduce the infectiousness of HIV-1 infected persons and pre-exposure prophylaxis (PrEP) to reduce the susceptibility of HIV-1 uninfected persons, showed high efficacy for HIV-1 protection in randomized clinical trials. We conducted a prospective implementation study to understand the feasibility and effectiveness of these interventions in delivery settings. METHODS AND FINDINGS Between November 5, 2012, and January 5, 2015, we enrolled and followed 1,013 heterosexual HIV-1-serodiscordant couples in Kenya and Uganda in a prospective implementation study. ART and PrEP were offered through a pragmatic strategy, with ART promoted for all couples and PrEP offered until 6 mo after ART initiation by the HIV-1 infected partner, permitting time to achieve virologic suppression. One thousand thirteen couples were enrolled, 78% of partnerships initiated ART, and 97% used PrEP, during a median follow-up of 0.9 years. Objective measures of adherence to both prevention strategies demonstrated high use (≥85%). Given the low HIV-1 incidence observed in the study, an additional analysis was added to compare observed incidence to incidence estimated under a simulated counterfactual model constructed using data from a prior prospective study of HIV-1-serodiscordant couples. Counterfactual simulations predicted 39.7 HIV-1 infections would be expected in the population at an incidence of 5.2 per 100 person-years (95% CI 3.7-6.9). However, only two incident HIV-1 infections were observed, at an incidence of 0.2 per 100 person-years (95% CI 0.0-0.9, p < 0.0001 versus predicted). The use of a non-concurrent comparison of HIV-1 incidence is a potential limitation of this approach; however, it would not have been ethical to enroll a contemporaneous population not provided access to ART and PrEP. CONCLUSIONS Integrated delivery of time-limited PrEP until sustained ART use in African HIV-1-serodiscordant couples was feasible, demonstrated high uptake and adherence, and resulted in near elimination of HIV-1 transmission, with an observed HIV incidence of <0.5% per year compared to an expected incidence of >5% per year.
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Assessment of epidemic projections using recent HIV survey data in South Africa: a validation analysis of ten mathematical models of HIV epidemiology in the antiretroviral therapy era. LANCET GLOBAL HEALTH 2016; 3:e598-608. [PMID: 26385301 DOI: 10.1016/s2214-109x(15)00080-7] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Revised: 05/06/2015] [Accepted: 06/12/2015] [Indexed: 12/30/2022]
Abstract
BACKGROUND Mathematical models are widely used to simulate the effects of interventions to control HIV and to project future epidemiological trends and resource needs. We aimed to validate past model projections against data from a large household survey done in South Africa in 2012. METHODS We compared ten model projections of HIV prevalence, HIV incidence, and antiretroviral therapy (ART) coverage for South Africa with estimates from national household survey data from 2012. Model projections for 2012 were made before the publication of the 2012 household survey. We compared adult (age 15-49 years) HIV prevalence in 2012, the change in prevalence between 2008 and 2012, and prevalence, incidence, and ART coverage by sex and by age groups between model projections and the 2012 household survey. FINDINGS All models projected lower prevalence estimates for 2012 than the survey estimate (18·8%), with eight models' central projections being below the survey 95% CI (17·5-20·3). Eight models projected that HIV prevalence would remain unchanged (n=5) or decline (n=3) between 2008 and 2012, whereas prevalence estimates from the household surveys increased from 16·9% in 2008 to 18·8% in 2012 (difference 1·9, 95% CI -0·1 to 3·9). Model projections accurately predicted the 1·6 percentage point prevalence decline (95% CI -0·3 to 3·5) in young adults aged 15-24 years, and the 2·2 percentage point (0·5 to 3·9) increase in those aged 50 years and older. Models accurately represented the number of adults on ART in 2012; six of ten models were within the survey 95% CI of 1·54-2·12 million. However, the differential ART coverage between women and men was not fully captured; all model projections of the sex ratio of women to men on ART were lower than the survey estimate of 2·22 (95% CI 1·73-2·71). INTERPRETATION Projections for overall declines in HIV epidemics during the ART era might have been optimistic. Future treatment and HIV prevention needs might be greater than previously forecasted. Additional data about service provision for HIV care could help inform more accurate projections. FUNDING Bill & Melinda Gates Foundation.
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Mbeye NM, Kredo T, Wiysonge CS. The effects of shifting tasks from pharmacy to non-pharmacy personnel for providing antiretroviral therapy to people living with HIV: a systematic review protocol. BMJ Open 2016; 6:e008195. [PMID: 26969641 PMCID: PMC4800137 DOI: 10.1136/bmjopen-2015-008195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
INTRODUCTION Shifting selected antiretroviral therapy (ART) tasks from specialised healthcare workers to those with shorter or less formal training has been implemented in resource-limited settings to alleviate critical shortages of human resources for health. However, the specifics of shifting ART dispensing from pharmacy to non-pharmacy personnel have not been addressed in a systematic review, although this can potentially increase access to ART. We will assess the effects of shifting dispensing and distribution of ART and adherence assessment from pharmacy to non-pharmacy personnel in low and middle-income countries. METHODS AND ANALYSIS We will search PubMed, CENTRAL, EMBASE, WHO Global Health Library and relevant grey literature for eligible controlled trials. Two authors will screen the search output, select eligible studies, assess risk of bias and extract data from included studies, resolving discrepancies by discussion and consensus. We will perform meta-analysis using both fixed and random effects models, investigate clinical and statistical heterogeneity, and assess our confidence in the overall evidence using standard Cochrane methods, including GRADE. ETHICS AND DISSEMINATION Only secondary data will be included in this review and ethics approval is not required. We will disseminate the review findings in various scientific fora, including peer-reviewed journals. The findings may help to inform policy makers in defining the scope of work of healthcare workers, and global recommendations for shifting the dispensing and distribution of ART from pharmacy to non-pharmacy personnel. TRIAL REGISTRATION NUMBER CRD42015017034.
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Affiliation(s)
- Nyanyiwe M Mbeye
- Cochrane South Africa, South African Medical Research Council, Tygerberg, South Africa
- Faculty of Medicine and Health Sciences, Centre for Evidence-based Health Care, Stellenbosch University, Cape Town, South Africa
| | - Tamara Kredo
- Cochrane South Africa, South African Medical Research Council, Tygerberg, South Africa
| | - Charles S Wiysonge
- Cochrane South Africa, South African Medical Research Council, Tygerberg, South Africa
- Faculty of Medicine and Health Sciences, Centre for Evidence-based Health Care, Stellenbosch University, Cape Town, South Africa
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Dirks JAMC, van Liere GAFS, Bogers S, Dukers-Muijrers NHTM, Wolffs PFG, Hoebe CJPA. Natural Course of Chlamydia trachomatis Bacterial Load in the Time Interval between Screening and Treatment in Anogenital Samples. PLoS One 2015; 10:e0145693. [PMID: 26713628 PMCID: PMC4701017 DOI: 10.1371/journal.pone.0145693] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 12/06/2015] [Indexed: 11/18/2022] Open
Abstract
INTRODUCTION Although Chlamydia trachomatis (CT) is the most common bacterial sexually transmitted infection worldwide, little is known about the natural course of the bacterial load during infection. We investigated the natural course of the bacterial load in the interval between screening and returning for treatment in genital and anorectal CT-infections. MATERIALS & METHODS CT-positive patients, visiting our STI-clinic in the Netherlands from June 2011-January 2014, provided a second urogenital and/or anorectal sample when returning for treatment (diagnostic sample = T1; treatment sample = T2). Patient-record provided data about the days between samples and the date of last unsafe sex. Included patients were ≥18 years old, HIV-negative and did not report antibiotic use in the study-interval. CT load was quantified using qPCR. CT load was log-transformed, and a CT load difference (Δ-CT load) of >1 log was deemed clinically relevant. Chi-square test compared load category distributions over time (decrease/equal/increase), between sample types. RESULTS 274 patients provided 296 paired samples. Majority of samples had a stable CT load in the interval T1-T2 (66.3%, 73.1% and 48.6% for vaginal swabs, urine and anorectal swabs resp. p = 0.07). Load decreased in 17-41% of patients, while ±10% of patients showed an increase in CT load. No association between Δ-CT load and the interval T1-T2 was observed. Large variations can be seen in CT load at T1 and over time. DISCUSSION The majority (±90%) of patients have a stable or decreasing CT load in the time interval between screening and returning for treatment. The number of days between sampling was not associated with change in CT load. In the first month after the last unsafe sex, only stable CT loads were seen. Our data seems to indicate that when most patients visit an STI-clinic, recommended 2 weeks after infection, the infection has already been established or is in its downward phase.
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Affiliation(s)
- J. A. M. C. Dirks
- Department of Medical Microbiology, Maastricht University Medical Center, School of Public Health and Primary Care, Maastricht, the Netherlands
- Department of Sexual Health, Infectious Diseases and Environmental Health, Public Health Service South Limburg, Geleen, the Netherlands
| | - G. A. F. S. van Liere
- Department of Medical Microbiology, Maastricht University Medical Center, School of Public Health and Primary Care, Maastricht, the Netherlands
- Department of Sexual Health, Infectious Diseases and Environmental Health, Public Health Service South Limburg, Geleen, the Netherlands
| | - S. Bogers
- Department of Medical Microbiology, Maastricht University Medical Center, School of Public Health and Primary Care, Maastricht, the Netherlands
| | - N. H. T. M. Dukers-Muijrers
- Department of Medical Microbiology, Maastricht University Medical Center, School of Public Health and Primary Care, Maastricht, the Netherlands
- Department of Sexual Health, Infectious Diseases and Environmental Health, Public Health Service South Limburg, Geleen, the Netherlands
| | - P. F. G. Wolffs
- Department of Medical Microbiology, Maastricht University Medical Center, School of Public Health and Primary Care, Maastricht, the Netherlands
| | - C. J. P. A. Hoebe
- Department of Medical Microbiology, Maastricht University Medical Center, School of Public Health and Primary Care, Maastricht, the Netherlands
- Department of Sexual Health, Infectious Diseases and Environmental Health, Public Health Service South Limburg, Geleen, the Netherlands
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Thanawuth N, Rojpibulstit M. Sexual risk behaviors among HIV-patients receiving antiretroviral therapy in Southern Thailand: roles of antiretroviral adherence and serostatus disclosure. AIDS Care 2015; 28:612-9. [PMID: 26666292 DOI: 10.1080/09540121.2015.1120856] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The objective of this study was to examine the extent of unprotected sex among patients already established in HIV-medical care and their associated factors. Sexually active patients who were receiving antiretroviral therapy (ART) from five public hospitals in Trang province, Southern Thailand, were interviewed. Of 279 studied patients, 37.3% had unprotected sex in the prior 3 months and 27.2% did not disclose their serostatus to sexual partners. The median duration interquartile range (IQR) of using ART was 47 (27-60) months and 26.7% were non-adherent to ART (i.e., taking less than 95% of the prescribed doses). More than one-third had the perception that ART use would protect against HIV transmission even with unprotected sex. About 36.6% reported that they were unaware of their current CD4 counts and nearly one-third did not receive any safe sex counseling at each medical follow-up. After adjustment for potential confounders, non-adherence to ART and HIV-nondisclosure were strongly associated with an increase in the risk of unprotected sex with the adjusted odds ratio (aOR) of 5.03 (95% CI 2.68-9.44) and 3.89 (95% CI 1.57-9.61), respectively. In contrast, the risk for engaging in unprotected sex was less likely among patients having a negative-serostatus partner (aOR = 0.30; 95% CI 0.12-0.75), a longer duration of the use of ART (aOR = 0.98; 95%CI 0.97-0.99) and an unawareness of their current CD4 levels (aOR = 0.54; 95% CI 0.30-0.99). To maximize the benefits from ART, there should be a bigger emphasis on the "positive prevention" program and more efforts are needed to target the population at risk for unprotected sex. Strategies to encourage adherence to ART and for disclosure of serostatus are also required.
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Affiliation(s)
- Nattasiri Thanawuth
- a Department of Clinical Pharmacy, Faculty of Pharmaceutical Sciences , Prince of Songkla University , Hatyai , Songkhla , Thailand
| | - Malee Rojpibulstit
- a Department of Clinical Pharmacy, Faculty of Pharmaceutical Sciences , Prince of Songkla University , Hatyai , Songkhla , Thailand
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Iwuji CC, McGrath N, de Oliveira T, Porter K, Pillay D, Fisher M, Newport M, Newell ML. The Art of HIV Elimination: Past and Present Science. JOURNAL OF AIDS & CLINICAL RESEARCH 2015; 6:525. [PMID: 27774350 PMCID: PMC5072486 DOI: 10.4172/2155-6113.1000525] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
INTRODUCTION Remarkable strides have been made in controlling the HIV epidemic, although not enough to achieve epidemic control. More recently, interest in biomedical HIV control approaches has increased, but substantial challenges with the HIV cascade of care hinder successful implementation. We summarise all available HIV prevention methods and make recommendations on how to address current challenges. DISCUSSION In the early days of the epidemic, behavioural approaches to control the HIV dominated, and the few available evidence-based interventions demonstrated to reduce HIV transmission were applied independently from one another. More recently, it has become clear that combination prevention strategies targeted to high transmission geographies and people at most risk of infections are required to achieve epidemic control. Biomedical strategies such as male medical circumcision and antiretroviral therapy for treatment in HIV-positive individuals and as pre-exposure prophylaxis in HIV-negative individuals provide immense promise for the future of HIV control. In resource-rich settings, the threat of HIV treatment optimism resulting in increased sexual risk taking has been observed and there are concerns that as ART roll-out matures in resource-poor settings and the benefits of ART become clearly visible, behavioural disinhibition may also become a challenge in those settings. Unfortunately, an efficacious vaccine, a strategy which could potentially halt the HIV epidemic, remains elusive. CONCLUSION Combination HIV prevention offers a logical approach to HIV control, although what and how the available options should be combined is contextual. Therefore, knowledge of the local or national drivers of HIV infection is paramount. Problems with the HIV care continuum remain of concern, hindering progress towards the UNAIDS target of 90-90-90 by 2020. Research is needed on combination interventions that address all the steps of the cascade as the steps are not independent of each other. Until these issues are addressed, HIV elimination may remain an unattainable goal.
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Affiliation(s)
- Collins C. Iwuji
- Africa Centre for Health and Population Studies, University of KwaZulu Natal, South Africa
- Research Department of Infection and Population Health, University College London, UK
| | - Nuala McGrath
- Africa Centre for Health and Population Studies, University of KwaZulu Natal, South Africa
- Academic Unit of Primary Care and Population Sciences, and Department of Social statistics and Demography, University of Southampton, UK
| | - Tulio de Oliveira
- Africa Centre for Health and Population Studies, University of KwaZulu Natal, South Africa
| | | | - Deenan Pillay
- Africa Centre for Health and Population Studies, University of KwaZulu Natal, South Africa
- Research Department of Infection and Immunity, University College London, UK
| | - Martin Fisher
- Division of Medicine, Brighton and Sussex Medical School, UK
| | - Melanie Newport
- Department of Infectious Diseases and Global Health, Brighton and Sussex Medical School, UK
| | - Marie-Louise Newell
- Faculty of Medicine and Faculty of Social and Human Sciences, University of Southampton, UK
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Angdembe MR, Lohani SP, Karki DK, Bhattarai K, Shrestha N. Sexual behaviour of people living with HIV attending a tertiary care government hospital in Kathmandu, Nepal: a cross sectional study. BMC Res Notes 2015; 8:629. [PMID: 26525742 PMCID: PMC4630840 DOI: 10.1186/s13104-015-1559-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2012] [Accepted: 10/05/2015] [Indexed: 11/25/2022] Open
Abstract
Background Clinical improvements that follow antiretroviral therapy (ART) may lead to increase or resumption of high risk activities that could unintentionally result in HIV transmission. The objective was to investigate whether treatment status is a significant predictor of sexual risk behaviour (unprotected sex). Methods A cross sectional study was conducted among 160 people living with HIV (PLHIV) (89 ART experienced and 71 ART naïve) attending Sukraraj Tropical and Infectious Disease Hospital in Kathmandu, Nepal. A structured questionnaire was used for data collection. Logistic regression with stepwise modeling was used to obtain adjusted odds ratios (OR) with 95 % CI. Results In this study, 92 % of sexually active respondents reported sex with a regular partner. ART experienced PLHIV were significantly more likely to report consistent condom use with their regular partners compared to ART naïve PLHIV (83 vs. 53 %; P = 0.006) during the past six months. In multivariate analysis, sex (OR = 4.59, 95 % CI: 1.15–18.39), treatment status (OR = 4.76, 95 % CI: 1.29–17.52) and alcohol consumption during last sex with regular partners (OR = 14.75, 95 % CI: 2.75–79.29) were significantly associated with unprotected sex. Conclusion ART naïve PLHIV were five times more likely to exhibit sexual risk behaviour (have unprotected sex) than ART experienced PLHIV. Thus the study provided no evidence to suggest that ART experienced PLHIV exhibit greater sexual risk behaviour compared to ART naïve PLHIV. Prevention programmes need to emphasize on counselling to PLHIV and their regular partners with focused interventions such as couple counselling and education programmes. Electronic supplementary material The online version of this article (doi:10.1186/s13104-015-1559-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Mirak Raj Angdembe
- Department of Public Health, Central Institute of Science and Technology, Pokhara University, Kathmandu, Nepal.
| | - Shyam Prasad Lohani
- Centre for Health Research and International Relations, Nobel College, Pokhara University, Kathmandu, Nepal.
| | | | - Kreepa Bhattarai
- Braun School of Public Health and Community Medicine, Hebrew University, Jerusalem, Israel.
| | - Niraj Shrestha
- Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Australia.
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A 15-year study of the impact of community antiretroviral therapy coverage on HIV incidence in Kenyan female sex workers. AIDS 2015; 29:2279-86. [PMID: 26237099 DOI: 10.1097/qad.0000000000000829] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To test the hypothesis that increasing community antiretroviral therapy (ART) coverage would be associated with lower HIV incidence in female sex workers (FSWs) in Mombasa District, Kenya. DESIGN Prospective cohort study. METHODS From 1998 to 2012, HIV-negative FSWs were asked to return monthly for an interview regarding risk behavior and testing for sexually transmitted infections including HIV. We evaluated the association between community ART coverage and FSW's risk of becoming HIV infected using Cox proportional hazards models adjusted for potential confounding factors. RESULTS One thousand, four hundred and four FSWs contributed 4335 woman-years of follow-up, with 145 acquiring HIV infection (incidence 3.35/100 woman-years). The ART rollout began in 2003. By 2012, an estimated 52% of HIV-positive individuals were receiving treatment. Community ART coverage was inversely associated with HIV incidence (adjusted hazard ratio 0.77; 95% confidence interval 0.61-0.98; P = 0.03), suggesting that each 10% increase in coverage was associated with a 23% reduction in FSWs' risk of HIV acquisition. Community ART coverage had no impact on herpes simplex virus type-2 incidence (adjusted hazard ratio 0.97; 95% confidence interval 0.79-1.20; P = 0.8). CONCLUSION Increasing general population ART coverage was associated with lower HIV incidence in FSWs. The association with HIV incidence, but not herpes simplex virus type-2 incidence, suggests that the effect of community ART coverage may be specific to HIV. Interventions such as preexposure prophylaxis and antiretroviral-containing microbicides have produced disappointing results in HIV prevention trials with FSWs. These results suggest that FSWs' risk of acquiring HIV infection might be reduced through the indirect approach of increasing ART coverage in the community.
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Vandormael A, Newell ML, Bärnighausen T, Tanser F. Use of antiretroviral therapy in households and risk of HIV acquisition in rural KwaZulu-Natal, South Africa, 2004–12: a prospective cohort study. LANCET GLOBAL HEALTH 2015; 2:e209-15. [PMID: 24782953 PMCID: PMC3986029 DOI: 10.1016/s2214-109x(14)70018-x] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND Studies of HIV-serodiscordant couples in stable sexual relationships have provided convincing evidence that antiretroviral therapy can prevent the transmission of HIV. We aimed to quantify the preventive effect of a public-sector HIV treatment and care programme based in a community with poor knowledge and disclosure of HIV status, frequent migration, late marriage, and multiple partnerships. Specifically, we assessed whether an individual's hazard of HIV acquisition was associated with antiretroviral therapy coverage among household members of the opposite sex. METHODS In this prospective cohort study, we linked patients' records from a public-sector HIV treatment programme in rural KwaZulu-Natal, South Africa, with population-based HIV surveillance data collected between 2004 and 2012. We used information about coresidence to construct estimates of HIV prevalence and antiretroviral therapy coverage for each household. We then regressed the time to HIV seroconversion for 14,505 individuals, who were HIV-uninfected at baseline and individually followed up over time regarding their HIV status, on opposite-sex household antiretroviral therapy coverage, controlling for household HIV prevalence and a range of other potential confounders. FINDINGS 2037 individual HIV seroconversions were recorded during 54,845 person-years of follow-up. For each increase of ten percentage points in opposite-sex household antiretroviral therapy coverage, the HIV acquisition hazard was reduced by 6% (95% CI 2–9), after controlling for other factors. This effect size translates into large reductions in HIV acquisition hazards when household antiretroviral therapy coverage is substantially increased. For example, an increase of 50 percentage points in household antiretroviral therapy coverage (eg, from 20% to 70%) reduced the hazard of HIV acquisition by 26% (95% CI 9–39). INTERPRETATION Our findings provide further evidence that antiretroviral therapy significantly reduces the risk of onward transmission of HIV in a real-world setting in sub-Saharan Africa. Awareness that antiretroviral therapy can prevent transmission to coresident sexual partners could be a powerful motivator for HIV testing and antiretroviral treatment uptake, retention, and adherence. FUNDING Wellcome Trust and National Institute of Child Health and Human Development (US National Institutes of Health).
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Abler L, Sikkema KJ, Watt MH, Hansen NB, Wilson PA, Kochman A. Depression and HIV Serostatus Disclosure to Sexual Partners Among Newly HIV-Diagnosed Men Who Have Sex with Men. AIDS Patient Care STDS 2015; 29:550-8. [PMID: 26430721 DOI: 10.1089/apc.2015.0122] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
HIV disclosure to sexual partners facilitates joint decision-making and risk reduction strategies for safer sex behaviors, but disclosure may be impacted by depression symptoms. Disclosure is also associated with disclosure self-efficacy, which in turn may also be influenced by depressive symptoms. This study examined the relationship between depression and HIV disclosure to partners following diagnosis among men who have sex with men (MSM), mediated by disclosure self-efficacy. Newly HIV-diagnosed MSM (n=92) who reported sexual activity after diagnosis completed an assessment soon after diagnosis which measured depressive symptoms, and another assessment within 3 months of diagnosis that measured disclosure self-efficacy and disclosure. Over one-third of the sample reported elevated depressive symptoms soon after diagnosis and equal proportions (one-third each) disclosed to none, some, or all partners in the 3 months after diagnosis. Depressive symptoms were negatively associated with disclosure self-efficacy and disclosure to partners, while disclosure self-efficacy was positively associated with disclosure. Disclosure self-efficacy partially mediated the relationship between depression and disclosure, accounting for 33% of the total effect. These findings highlight the importance of addressing depression that follows diagnosis to enhance subsequent disclosure to sexual partners.
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Affiliation(s)
- Laurie Abler
- Duke Global Health Institute, Duke University, Durham, North Carolina
| | - Kathleen J. Sikkema
- Duke Global Health Institute, Duke University, Durham, North Carolina
- Department of Psychology and Neuroscience, Duke University, Durham, North Carolina
| | - Melissa H. Watt
- Duke Global Health Institute, Duke University, Durham, North Carolina
| | - Nathan B. Hansen
- Department of Health Promotion and Behavior, University of Georgia, Athens, Georgia
| | - Patrick A. Wilson
- Department of Sociomedical Sciences, Mailman School of Public Health, Columbia University, New York City, New York
| | - Arlene Kochman
- Duke Global Health Institute, Duke University, Durham, North Carolina
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Said AP, Seidl EMF. Sorodiscordância e prevenção do HIV: percepções de pessoas em relacionamentos estáveis e não estáveis. INTERFACE - COMUNICAÇÃO, SAÚDE, EDUCAÇÃO 2015. [DOI: 10.1590/1807-57622014.0120] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Políticas referentes à profilaxia pós-exposição sexual (PEP sexual) e a estratégia “tratamento como prevenção” reforçaram as ações preventivas da transmissão do HIV. Este estudo objetivou descrever percepções de pessoas com HIV/aids sobre a prevenção da transmissão do HIV no contexto da sorodiscordância. Foram conduzidos dois grupos focais com 13 participantes com relacionamentos sorodiscordantes: um com pessoas em parcerias estáveis e outro em parcerias não estáveis. Pouco mais de um terço dos participantes tinham conhecimento sobre a PEP e o “tratamento como prevenção”. Houve consenso de que há mais facilidade na adoção de práticas sexuais seguras nas parcerias sorodiscordantes não estáveis. Vantagens das novas políticas foram relatadas, não obstante o receio de que possa haver negligência quanto ao uso do preservativo. Destaca-se a relevância da atuação de equipes de saúde com casais sorodiscordantes quanto à prevenção da transmissão sexual do HIV.
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Zinski A, Westfall AO, Gardner LI, Giordano TP, Wilson TE, Drainoni ML, Keruly JC, Rodriguez AE, Malitz F, Batey DS, Mugavero MJ. The Contribution of Missed Clinic Visits to Disparities in HIV Viral Load Outcomes. Am J Public Health 2015; 105:2068-75. [PMID: 26270301 DOI: 10.2105/ajph.2015.302695] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVES We explored the contribution of missed primary HIV care visits ("no-show") to observed disparities in virological failure (VF) among Black persons and persons with injection drug use (IDU) history. METHODS We used patient-level data from 6 academic clinics, before the Centers for Disease Control and Prevention and Health Resources and Services Administration Retention in Care intervention. We employed staged multivariable logistic regression and multivariable models stratified by no-show visit frequency to evaluate the association of sociodemographic factors with VF. We used multiple imputations to assign missing viral load values. RESULTS Among 10 053 patients (mean age = 46 years; 35% female; 64% Black; 15% with IDU history), 31% experienced VF. Although Black patients and patients with IDU history were significantly more likely to experience VF in initial analyses, race and IDU parameter estimates were attenuated after sequential addition of no-show frequency. In stratified models, race and IDU were not statistically significantly associated with VF at any no-show level. CONCLUSIONS Because missed clinic visits contributed to observed differences in viral load outcomes among Black and IDU patients, achieving an improved understanding of differential visit attendance is imperative to reducing disparities in HIV.
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Affiliation(s)
- Anne Zinski
- Anne Zinski, Andrew O. Westfall, D. Scott Batey, and Michael J. Mugavero are with the Department of Medicine, Division of Infectious Diseases, University of Alabama at Birmingham. Lytt I. Gardner is with the Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, GA. Thomas P. Giordano is with the Department of Medicine, Section of Infectious Diseases, Baylor College of Medicine, Houston, TX. Tracey E. Wilson is with the Department of Community Health Sciences, State University of New York, Downstate Medical Center, Brooklyn, NY. Mari-Lynn Drainoni is with the Department of Health Policy and Management, Boston University School of Public Health, Boston, MA. Jeanne C. Keruly is with Johns Hopkins University, School of Medicine, Division of Infectious Diseases, Baltimore, MD. Allan E. Rodriguez is with the Division of Infectious Diseases, Miller School of Medicine, University of Miami, FL. Faye Malitz is with the HIV/AIDS Bureau, Health Resources and Services Administration, Rockville, MD
| | - Andrew O Westfall
- Anne Zinski, Andrew O. Westfall, D. Scott Batey, and Michael J. Mugavero are with the Department of Medicine, Division of Infectious Diseases, University of Alabama at Birmingham. Lytt I. Gardner is with the Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, GA. Thomas P. Giordano is with the Department of Medicine, Section of Infectious Diseases, Baylor College of Medicine, Houston, TX. Tracey E. Wilson is with the Department of Community Health Sciences, State University of New York, Downstate Medical Center, Brooklyn, NY. Mari-Lynn Drainoni is with the Department of Health Policy and Management, Boston University School of Public Health, Boston, MA. Jeanne C. Keruly is with Johns Hopkins University, School of Medicine, Division of Infectious Diseases, Baltimore, MD. Allan E. Rodriguez is with the Division of Infectious Diseases, Miller School of Medicine, University of Miami, FL. Faye Malitz is with the HIV/AIDS Bureau, Health Resources and Services Administration, Rockville, MD
| | - Lytt I Gardner
- Anne Zinski, Andrew O. Westfall, D. Scott Batey, and Michael J. Mugavero are with the Department of Medicine, Division of Infectious Diseases, University of Alabama at Birmingham. Lytt I. Gardner is with the Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, GA. Thomas P. Giordano is with the Department of Medicine, Section of Infectious Diseases, Baylor College of Medicine, Houston, TX. Tracey E. Wilson is with the Department of Community Health Sciences, State University of New York, Downstate Medical Center, Brooklyn, NY. Mari-Lynn Drainoni is with the Department of Health Policy and Management, Boston University School of Public Health, Boston, MA. Jeanne C. Keruly is with Johns Hopkins University, School of Medicine, Division of Infectious Diseases, Baltimore, MD. Allan E. Rodriguez is with the Division of Infectious Diseases, Miller School of Medicine, University of Miami, FL. Faye Malitz is with the HIV/AIDS Bureau, Health Resources and Services Administration, Rockville, MD
| | - Thomas P Giordano
- Anne Zinski, Andrew O. Westfall, D. Scott Batey, and Michael J. Mugavero are with the Department of Medicine, Division of Infectious Diseases, University of Alabama at Birmingham. Lytt I. Gardner is with the Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, GA. Thomas P. Giordano is with the Department of Medicine, Section of Infectious Diseases, Baylor College of Medicine, Houston, TX. Tracey E. Wilson is with the Department of Community Health Sciences, State University of New York, Downstate Medical Center, Brooklyn, NY. Mari-Lynn Drainoni is with the Department of Health Policy and Management, Boston University School of Public Health, Boston, MA. Jeanne C. Keruly is with Johns Hopkins University, School of Medicine, Division of Infectious Diseases, Baltimore, MD. Allan E. Rodriguez is with the Division of Infectious Diseases, Miller School of Medicine, University of Miami, FL. Faye Malitz is with the HIV/AIDS Bureau, Health Resources and Services Administration, Rockville, MD
| | - Tracey E Wilson
- Anne Zinski, Andrew O. Westfall, D. Scott Batey, and Michael J. Mugavero are with the Department of Medicine, Division of Infectious Diseases, University of Alabama at Birmingham. Lytt I. Gardner is with the Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, GA. Thomas P. Giordano is with the Department of Medicine, Section of Infectious Diseases, Baylor College of Medicine, Houston, TX. Tracey E. Wilson is with the Department of Community Health Sciences, State University of New York, Downstate Medical Center, Brooklyn, NY. Mari-Lynn Drainoni is with the Department of Health Policy and Management, Boston University School of Public Health, Boston, MA. Jeanne C. Keruly is with Johns Hopkins University, School of Medicine, Division of Infectious Diseases, Baltimore, MD. Allan E. Rodriguez is with the Division of Infectious Diseases, Miller School of Medicine, University of Miami, FL. Faye Malitz is with the HIV/AIDS Bureau, Health Resources and Services Administration, Rockville, MD
| | - Mari-Lynn Drainoni
- Anne Zinski, Andrew O. Westfall, D. Scott Batey, and Michael J. Mugavero are with the Department of Medicine, Division of Infectious Diseases, University of Alabama at Birmingham. Lytt I. Gardner is with the Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, GA. Thomas P. Giordano is with the Department of Medicine, Section of Infectious Diseases, Baylor College of Medicine, Houston, TX. Tracey E. Wilson is with the Department of Community Health Sciences, State University of New York, Downstate Medical Center, Brooklyn, NY. Mari-Lynn Drainoni is with the Department of Health Policy and Management, Boston University School of Public Health, Boston, MA. Jeanne C. Keruly is with Johns Hopkins University, School of Medicine, Division of Infectious Diseases, Baltimore, MD. Allan E. Rodriguez is with the Division of Infectious Diseases, Miller School of Medicine, University of Miami, FL. Faye Malitz is with the HIV/AIDS Bureau, Health Resources and Services Administration, Rockville, MD
| | - Jeanne C Keruly
- Anne Zinski, Andrew O. Westfall, D. Scott Batey, and Michael J. Mugavero are with the Department of Medicine, Division of Infectious Diseases, University of Alabama at Birmingham. Lytt I. Gardner is with the Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, GA. Thomas P. Giordano is with the Department of Medicine, Section of Infectious Diseases, Baylor College of Medicine, Houston, TX. Tracey E. Wilson is with the Department of Community Health Sciences, State University of New York, Downstate Medical Center, Brooklyn, NY. Mari-Lynn Drainoni is with the Department of Health Policy and Management, Boston University School of Public Health, Boston, MA. Jeanne C. Keruly is with Johns Hopkins University, School of Medicine, Division of Infectious Diseases, Baltimore, MD. Allan E. Rodriguez is with the Division of Infectious Diseases, Miller School of Medicine, University of Miami, FL. Faye Malitz is with the HIV/AIDS Bureau, Health Resources and Services Administration, Rockville, MD
| | - Allan E Rodriguez
- Anne Zinski, Andrew O. Westfall, D. Scott Batey, and Michael J. Mugavero are with the Department of Medicine, Division of Infectious Diseases, University of Alabama at Birmingham. Lytt I. Gardner is with the Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, GA. Thomas P. Giordano is with the Department of Medicine, Section of Infectious Diseases, Baylor College of Medicine, Houston, TX. Tracey E. Wilson is with the Department of Community Health Sciences, State University of New York, Downstate Medical Center, Brooklyn, NY. Mari-Lynn Drainoni is with the Department of Health Policy and Management, Boston University School of Public Health, Boston, MA. Jeanne C. Keruly is with Johns Hopkins University, School of Medicine, Division of Infectious Diseases, Baltimore, MD. Allan E. Rodriguez is with the Division of Infectious Diseases, Miller School of Medicine, University of Miami, FL. Faye Malitz is with the HIV/AIDS Bureau, Health Resources and Services Administration, Rockville, MD
| | - Faye Malitz
- Anne Zinski, Andrew O. Westfall, D. Scott Batey, and Michael J. Mugavero are with the Department of Medicine, Division of Infectious Diseases, University of Alabama at Birmingham. Lytt I. Gardner is with the Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, GA. Thomas P. Giordano is with the Department of Medicine, Section of Infectious Diseases, Baylor College of Medicine, Houston, TX. Tracey E. Wilson is with the Department of Community Health Sciences, State University of New York, Downstate Medical Center, Brooklyn, NY. Mari-Lynn Drainoni is with the Department of Health Policy and Management, Boston University School of Public Health, Boston, MA. Jeanne C. Keruly is with Johns Hopkins University, School of Medicine, Division of Infectious Diseases, Baltimore, MD. Allan E. Rodriguez is with the Division of Infectious Diseases, Miller School of Medicine, University of Miami, FL. Faye Malitz is with the HIV/AIDS Bureau, Health Resources and Services Administration, Rockville, MD
| | - D Scott Batey
- Anne Zinski, Andrew O. Westfall, D. Scott Batey, and Michael J. Mugavero are with the Department of Medicine, Division of Infectious Diseases, University of Alabama at Birmingham. Lytt I. Gardner is with the Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, GA. Thomas P. Giordano is with the Department of Medicine, Section of Infectious Diseases, Baylor College of Medicine, Houston, TX. Tracey E. Wilson is with the Department of Community Health Sciences, State University of New York, Downstate Medical Center, Brooklyn, NY. Mari-Lynn Drainoni is with the Department of Health Policy and Management, Boston University School of Public Health, Boston, MA. Jeanne C. Keruly is with Johns Hopkins University, School of Medicine, Division of Infectious Diseases, Baltimore, MD. Allan E. Rodriguez is with the Division of Infectious Diseases, Miller School of Medicine, University of Miami, FL. Faye Malitz is with the HIV/AIDS Bureau, Health Resources and Services Administration, Rockville, MD
| | - Michael J Mugavero
- Anne Zinski, Andrew O. Westfall, D. Scott Batey, and Michael J. Mugavero are with the Department of Medicine, Division of Infectious Diseases, University of Alabama at Birmingham. Lytt I. Gardner is with the Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, GA. Thomas P. Giordano is with the Department of Medicine, Section of Infectious Diseases, Baylor College of Medicine, Houston, TX. Tracey E. Wilson is with the Department of Community Health Sciences, State University of New York, Downstate Medical Center, Brooklyn, NY. Mari-Lynn Drainoni is with the Department of Health Policy and Management, Boston University School of Public Health, Boston, MA. Jeanne C. Keruly is with Johns Hopkins University, School of Medicine, Division of Infectious Diseases, Baltimore, MD. Allan E. Rodriguez is with the Division of Infectious Diseases, Miller School of Medicine, University of Miami, FL. Faye Malitz is with the HIV/AIDS Bureau, Health Resources and Services Administration, Rockville, MD
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Cingolani A, Zona S, Girardi E, Cozzi-Lepri A, Monno L, Quiros Roldan E, Guaraldi G, Antinori A, D’Arminio Monforte A, Marcotullio S. Incidence and factors associated with the risk of sexually transmitted diseases in HIV-infected people seen for care in Italy: data from the Icona Foundation cohort. HIV Med 2015; 16:412-20. [PMID: 25959419 PMCID: PMC4682467 DOI: 10.1111/hiv.12226] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/16/2014] [Indexed: 11/28/2022]
Abstract
OBJECTIVES The aims of this study were to identify temporal trends in the incidence of sexually transmitted diseases (STDs) in a cohort of HIV-infected people and to evaluate factors associated with the risk of a new STD diagnosis. METHODS All HIV-infected patients in the Icona Foundation Study cohort enrolled after 1998 were included in this study. STD incidence rates (IRs) were calculated and stratified by calendar period. Predictors of STDs were identified using a Poisson regression model with sandwich estimates for standard errors. RESULTS Data for 9168 participants were analysed [median age 37.3 (range 18-81) years; 74% male; 30% men who have sex with men (MSM)]. Over 46 736 person-years of follow-up (PYFU), 996 episodes of STDs were observed [crude IR 21.3/1000 PYFU; 95% confidence interval (CI) 20.0-22.6/1000 PYFU]. In multivariable Poisson regression analysis, MSM [rate ratio (RR) 3.03; 95% CI 2.52-3.64 versus heterosexuals], calendar period (RR 1.67; 95% CI 1.42-1.97 for 2008-2012 versus 1998-2002), HIV RNA > 50 HIV-1 RNA copies/mL (RR 1.44; 95% CI 1.19-1.74 versus HIV RNA ≤ 50 copies/mL) and a current CD4 count < 100 cells/μL (RR 4.66; 95% CI 3.69-5.89; P < 0.001 versus CD4 count > 500 cells/μL) were associated with an increased risk of STDs. In contrast, older age (RR 0.82 per 10 years older; 95% CI 0.77-0.89) and being currently on ART (RR 0.38; 95% CI 0.33-0.45) compared with being ART-naïve or on a treatment interruption were associated with a lower risk of developing STDs. CONCLUSIONS An increase in the incidence of STDs was observed in more recent years. Interventions to prevent STDs and potential spread of HIV should target the younger population, MSM and people currently not receiving ART.
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Affiliation(s)
- A Cingolani
- Department of Public Health, Infectious Diseases, Catholic UniversityRome, Italy
| | - S Zona
- Clinic of Infectious Diseases, Univeristy of Modena and Reggio EmiliaModena, Italy
| | - E Girardi
- Department of Epidemiology, National Institute for Infectious Diseases ‘L. Spallanzani’Rome, Italy
| | - A Cozzi-Lepri
- Department of Infection and Population Health, Division of Population Health, University College London Medical School, Royal Free CampusLondon, UK
| | - L Monno
- Institute of Infectious Diseases, University of BariBari, Italy
| | - E Quiros Roldan
- Institute of Infectious Diseases, University of BresciaBrescia, Italy
| | - G Guaraldi
- Clinic of Infectious Diseases, Univeristy of Modena and Reggio EmiliaModena, Italy
| | - A Antinori
- Clinical Department, National Institute for Infectious Diseases ‘L. Spallanzani’Rome, Italy
| | - A D’Arminio Monforte
- Clinic of Infectious and Tropical Diseases, Department of Health Sciences, San Paolo University HospitalMilan, Italy
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Birungi J, Min JE, Muldoon KA, Kaleebu P, King R, Khanakwa S, Nyonyintono M, Chen Y, Mills EJ, Lyagoba F, Ragonnet-Cronin M, Wangisi J, Lourenco L, Moore DM. Lack of Effectiveness of Antiretroviral Therapy in Preventing HIV Infection in Serodiscordant Couples in Uganda: An Observational Study. PLoS One 2015; 10:e0132182. [PMID: 26171777 PMCID: PMC4501729 DOI: 10.1371/journal.pone.0132182] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Accepted: 06/10/2015] [Indexed: 11/19/2022] Open
Abstract
Background We examined the real-world effectiveness of ART as an HIV prevention tool among HIV serodiscordant couples in a programmatic setting in a low-income country. Methods We enrolled individuals from HIV serodiscordant couples aged ≥18 years of age in Jinja, Uganda from June 2009 – June 2011. In one group of couples the HIV positive partner was receiving ART as they met clinical eligibility criteria (a CD4 cell count ≤250 cells/ μL or WHO Stage III/IV disease). In the second group the infected partner was not yet ART-eligible. We measured HIV incidence by testing the uninfected partner every three months. We conducted genetic linkage studies to determine the source of new infections in seroconverting participants. Results A total of 586 couples were enrolled of which 249 (42%) of the HIV positive participants were receiving ART at enrollment, and an additional 99 (17%) initiated ART during the study. The median duration of follow-up was 1.5 years. We found 9 new infections among partners of participants who had been receiving ART for at least three months and 8 new infections in partners of participants who had not received ART or received it for less than three months, for incidence rates of 2.09 per 100 person-years (PYRs) and 2.30 per 100 PYRs, respectively. The incidence rate ratio for ART-use was 0.91 (95% confidence interval 0.31-2.70; p=0.999). The hazard ratio for HIV seroconversion associated with ART-use by the positive partner was 1.07 (95% CI 0.41-2.80). A total of 5/7 (71%) of the transmissions on ART and 6/7 (86%) of those not on ART were genetically linked. Conclusion Overall HIV incidence was low in comparison to previous studies of serodiscordant couples. However, ART-use was not associated with a reduced risk of HIV transmission in this study.
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Affiliation(s)
| | - Jeong Eun Min
- BC Centre for Excellence in HIV/ AIDS, Vancouver, Canada
| | - Katherine A. Muldoon
- BC Centre for Excellence in HIV/ AIDS, Vancouver, Canada
- University of British Columbia, Faculty of Medicine, Vancouver, Canada
| | - Pontiano Kaleebu
- Medical Research Council (UK)-Uganda Virus Research Institute Research Unit on AIDS, Entebbe, Uganda
- London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Rachel King
- University of California, San Francisco, Kampala, Uganda
| | | | | | - YaLin Chen
- BC Centre for Excellence in HIV/ AIDS, Vancouver, Canada
| | - Edward J. Mills
- Faculty of Health Sciences, University of Ottawa, Ottawa, Canada
| | - Fred Lyagoba
- Medical Research Council (UK)-Uganda Virus Research Institute Research Unit on AIDS, Entebbe, Uganda
| | - Manon Ragonnet-Cronin
- Institute of Evolutionary Biology, University of Edinburgh, Edinburgh, United Kingdom
| | | | | | - David M. Moore
- BC Centre for Excellence in HIV/ AIDS, Vancouver, Canada
- University of British Columbia, Faculty of Medicine, Vancouver, Canada
- * E-mail:
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The effect of sexually transmitted co-infections on HIV viral load amongst individuals on antiretroviral therapy: a systematic review and meta-analysis. BMC Infect Dis 2015; 15:249. [PMID: 26123030 PMCID: PMC4486691 DOI: 10.1186/s12879-015-0961-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 05/21/2015] [Indexed: 12/04/2022] Open
Abstract
Background Antiretroviral therapy (ART) markedly reduces HIV transmission, and testing and treatment programs have been advocated as a method for decreasing transmission at the population level. Little is known, however, about the extent to which sexually transmitted infections (STIs), which increase the HIV infectiousness of untreated individuals, may decrease the effectiveness of treatment as prevention. Methods We searched major bibliographic databases to August 12th, 2014 and identified studies reporting differences in HIV transmission rate or in viral load between individuals on ART who either were or were not co-infected with another STI. We used hierarchical Bayesian models to estimate viral load differences between individuals with and without STI co-infections. Results The search strategy retrieved 1630 unique citations of which 14 studies (reporting on 4607 HIV viral load measurements from 2835 unique individuals) met the inclusion criteria. We did not find any suitable studies that estimated transmission rates directly in both groups. Our meta-analysis of HIV viral load measurements among treated individuals did not find a statistically significant effect of STI co-infection; viral loads were, on average, 0.11 log10 (95 % CI −0.62 to 0.83) higher among co-infected versus non-co-infected individuals. Conclusions Direct evidence about the effects of STI co-infection on transmission from individuals on ART is very limited. Available data suggests that the average effect of STI co-infection on HIV viral load in individuals on ART is less than 1 log10 difference, and thus unlikely to decrease the effectiveness of treatment as prevention. However, there is not enough data to rule out the possibility that particular STIs pose a larger threat. Electronic supplementary material The online version of this article (doi:10.1186/s12879-015-0961-5) contains supplementary material, which is available to authorized users.
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Ciaranello AL, Matthews LT. Safer Conception Strategies for HIV-Serodiscordant Couples: How Safe Is Safe Enough? J Infect Dis 2015; 212:1525-8. [PMID: 26092857 PMCID: PMC4621252 DOI: 10.1093/infdis/jiv275] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Accepted: 05/05/2015] [Indexed: 01/01/2023] Open
Affiliation(s)
- Andrea L Ciaranello
- Division of Infectious Disease, Department of Medicine Medical Practice Evaluation Center
| | - Lynn T Matthews
- Division of Infectious Disease, Department of Medicine Center for Global Health, Massachusetts General Hospital, Boston
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Katz IT, Dietrich J, Tshabalala G, Essien T, Rough K, Wright AA, Bangsberg DR, Gray GE, Ware NC. Understanding treatment refusal among adults presenting for HIV-testing in Soweto, South Africa: a qualitative study. AIDS Behav 2015; 19:704-14. [PMID: 25304330 DOI: 10.1007/s10461-014-0920-y] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
HIV treatment initiatives have focused on increasing access to antiretroviral therapy (ART). There is growing evidence, however, that treatment availability alone is insufficient to stop the epidemic. In South Africa, only one third of individuals living with HIV are actually on treatment. Treatment refusal has been identified as a phenomenon among people who are asymptomatic, however, factors driving refusal remain poorly understood. We interviewed 50 purposively sampled participants who presented for voluntary counseling and testing in Soweto to elicit a broad range of detailed perspectives on ART refusal. We then integrated our core findings into an explanatory framework. Participants described feeling "too healthy" to start treatment, despite often having a diagnosis of AIDS. This subjective view of wellness was framed within the context of treatment being reserved for the sick. Taking ART could also lead to unintended disclosure and social isolation. These data provide a novel explanatory model of treatment refusal, recognizing perceived risks and social costs incurred when disclosing one's status through treatment initiation. Our findings suggest that improving engagement in care for people living with HIV in South Africa will require optimizing social integration and connectivity for those who test positive.
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Mitchell JW, Stephenson R. HIV-Negative Partnered Men's Willingness to Use Pre-Exposure Prophylaxis and Associated Factors Among an Internet Sample of U.S. HIV-Negative and HIV-Discordant Male Couples. LGBT Health 2015; 2:35-40. [PMID: 26790016 DOI: 10.1089/lgbt.2014.0092] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
PURPOSE Research on male couples' willingness to use pre-exposure prophylaxis (PrEP) is critically lacking. METHODS A cross-sectional 2011 Internet survey collected dyadic data from 275 HIV-negative and 58 HIV-discordant male couples to describe 631 HIV-negative partnered mens' willingness to use PrEP and associated couple-level demographic and behavioral factors with multivariate multilevel modeling. RESULTS Fifty-three percent were very to extremely likely to use PrEP. Willingness was positively associated with being in a mixed race and behaviorally non-monogamous relationship, and with amyl nitrate use with sex outside the relationship. Willingness was negatively associated with having a college education. CONCLUSION Prevention efforts should educate male couples about the potential benefits of PrEP.
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Affiliation(s)
- Jason W Mitchell
- 1 Department of Public Health Sciences, University of Miami Miller School of Medicine , Miami, Florida
| | - Rob Stephenson
- 2 Health Behavior and Biological Sciences, School of Nursing, University of Michigan , Ann Arbor, Michigan
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Baral S, Ketende S, Green JL, Chen PA, Grosso A, Sithole B, Ntshangase C, Yam E, Kerrigan D, Kennedy CE, Adams D. Reconceptualizing the HIV epidemiology and prevention needs of Female Sex Workers (FSW) in Swaziland. PLoS One 2014; 9:e115465. [PMID: 25531771 PMCID: PMC4274078 DOI: 10.1371/journal.pone.0115465] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2013] [Accepted: 11/24/2014] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND HIV is hyperendemic in Swaziland with a prevalence of over 25% among those between the ages of 15 and 49 years old. The HIV response in Swaziland has traditionally focused on decreasing HIV acquisition and transmission risks in the general population through interventions such as male circumcision, increasing treatment uptake and adherence, and risk-reduction counseling. There is emerging data from Southern Africa that key populations such as female sex workers (FSW) carry a disproportionate burden of HIV even in generalized epidemics such as Swaziland. The burden of HIV and prevention needs among FSW remains unstudied in Swaziland. METHODS A respondent-driven-sampling survey was completed between August-October, 2011 of 328 FSW in Swaziland. Each participant completed a structured survey instrument and biological HIV and syphilis testing according to Swazi Guidelines. RESULTS Unadjusted HIV prevalence was 70.3% (n = 223/317) among a sample of women predominantly from Swaziland (95.2%, n = 300/316) with a mean age of 21(median 25) which was significantly higher than the general population of women. Approximately one-half of the FSW(53.4%, n = 167/313) had received HIV prevention information related to sex work in the previous year, and about one-in-ten had been part of a previous research project(n = 38/313). Rape was common with nearly 40% (n = 123/314) reporting at least one rape; 17.4% (n = 23/314)reported being raped 6 or more times. Reporting blackmail (34.8%, n = 113/314) and torture(53.2%, n = 173/314) was prevalent. CONCLUSIONS While Swaziland has a highly generalized HIV epidemic, reconceptualizing the needs of key populations such as FSW suggests that these women represent a distinct population with specific vulnerabilities and a high burden of HIV compared to other women. These women are understudied and underserved resulting in a limited characterization of their HIV prevention, treatment, and care needs and only sparse specific and competent programming. FSW are an important population for further investigation and rapid scale-up of combination HIV prevention including biomedical, behavioral, and structural interventions.
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Affiliation(s)
- Stefan Baral
- Key Populations Program, Center for Public Health and Human Rights, Department of Epidemiology, Johns Hopkins School of Public Health, Baltimore, Maryland, United States of America
- * E-mail:
| | - Sosthenes Ketende
- Key Populations Program, Center for Public Health and Human Rights, Department of Epidemiology, Johns Hopkins School of Public Health, Baltimore, Maryland, United States of America
| | | | - Ping-An Chen
- Key Populations Program, Center for Public Health and Human Rights, Department of Epidemiology, Johns Hopkins School of Public Health, Baltimore, Maryland, United States of America
| | - Ashley Grosso
- Key Populations Program, Center for Public Health and Human Rights, Department of Epidemiology, Johns Hopkins School of Public Health, Baltimore, Maryland, United States of America
| | | | - Cebisile Ntshangase
- Swaziland National AIDS Program, Strategic Information Division, Ministry of Health, Mbabane, Swaziland
| | - Eileen Yam
- Department of Population, Family, and Reproductive Health, Johns Hopkins School of Public Health, Baltimore, Maryland, United States of America
| | - Deanna Kerrigan
- Department of Health, Behavior, and Society, Johns Hopkins School of Public Health, Baltimore, Maryland, United States of America
| | - Caitlin E. Kennedy
- Department of International Health, Johns Hopkins School of Public Health, Baltimore, Maryland, United States of America
| | - Darrin Adams
- Department of International Health, Johns Hopkins School of Public Health, Baltimore, Maryland, United States of America
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Chen A, Dowdy DW. Clinical effectiveness and cost-effectiveness of HIV pre-exposure prophylaxis in men who have sex with men: risk calculators for real-world decision-making. PLoS One 2014; 9:e108742. [PMID: 25285793 PMCID: PMC4186823 DOI: 10.1371/journal.pone.0108742] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Accepted: 08/25/2014] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Oral pre-exposure prophylaxis (PrEP) can be clinically effective and cost-effective for HIV prevention in high-risk men who have sex with men (MSM). However, individual patients have different risk profiles, real-world populations vary, and no practical tools exist to guide clinical decisions or public health strategies. We introduce a practical model of HIV acquisition, including both a personalized risk calculator for clinical management and a cost-effectiveness calculator for population-level decisions. METHODS We developed a decision-analytic model of PrEP for MSM. The primary clinical effectiveness and cost-effectiveness outcomes were the number needed to treat (NNT) to prevent one HIV infection, and the cost per quality-adjusted life-year (QALY) gained. We characterized patients according to risk factors including PrEP adherence, condom use, sexual frequency, background HIV prevalence and antiretroviral therapy use. RESULTS With standard PrEP adherence and national epidemiologic parameters, the estimated NNT was 64 (95% uncertainty range: 26, 176) at a cost of $160,000 (cost saving, $740,000) per QALY--comparable to other published models. With high (35%) HIV prevalence, the NNT was 35 (21, 57), and cost per QALY was $27,000 (cost saving, $160,000), and with high PrEP adherence, the NNT was 30 (14, 69), and cost per QALY was $3,000 (cost saving, $200,000). In contrast, for monogamous, serodiscordant relationships with partner antiretroviral therapy use, the NNT was 90 (39, 157) and cost per QALY was $280,000 ($14,000, $670,000). CONCLUSIONS PrEP results vary widely across individuals and populations. Risk calculators may aid in patient education, clinical decision-making, and cost-effectiveness evaluation.
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Affiliation(s)
- Anders Chen
- Department of Internal Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - David W. Dowdy
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America
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Lassi ZS, Mansoor T, Salam RA, Das JK, Bhutta ZA. Essential pre-pregnancy and pregnancy interventions for improved maternal, newborn and child health. Reprod Health 2014; 11 Suppl 1:S2. [PMID: 25178042 PMCID: PMC4145858 DOI: 10.1186/1742-4755-11-s1-s2] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The statistics related to pregnancy and its outcomes are staggering: annually, an estimated 250000-280000 women die during childbirth. Unfortunately, a large number of women receive little or no care during or before pregnancy. At a period of critical vulnerability, interventions can be effectively delivered to improve the health of women and their newborns and also to make their pregnancy safe. This paper reviews the interventions that are most effective during preconception and pregnancy period and synergistically improve maternal and neonatal outcomes. Among pre-pregnancy interventions, family planning and advocating pregnancies at appropriate intervals; prevention and management of sexually transmitted infections including HIV; and peri-conceptual folic-acid supplementation have shown significant impact on reducing maternal and neonatal morbidity and mortality. During pregnancy, interventions including antenatal care visit model; iron and folic acid supplementation; tetanus Immunisation; prevention and management of malaria; prevention and management of HIV and PMTCT; calcium for hypertension; anti-Platelet agents (low dose aspirin) for prevention of Pre-eclampsia; anti-hypertensives for treating severe hypertension; management of pregnancy-induced hypertension/eclampsia; external cephalic version for breech presentation at term (>36 weeks); management of preterm, premature rupture of membranes; management of unintended pregnancy; and home visits for women and children across the continuum of care have shown maximum impact on reducing the burden of maternal and newborn morbidity and mortality. All of the interventions summarized in this paper have the potential to improve maternal mortality rates and also contribute to better health care practices during preconception and periconception period.
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Affiliation(s)
- Zohra S Lassi
- Division of Women and Child Health, Aga Khan University, Karachi, Pakistan
| | - Tarab Mansoor
- Division of Women and Child Health, Aga Khan University, Karachi, Pakistan
| | - Rehana A Salam
- Division of Women and Child Health, Aga Khan University, Karachi, Pakistan
| | - Jai K Das
- Division of Women and Child Health, Aga Khan University, Karachi, Pakistan
| | - Zulfiqar A Bhutta
- Division of Women and Child Health, Aga Khan University, Karachi, Pakistan
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