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Boering P, Seeley J, Buule J, Kamacooko O, King R. A Comparison of Self-reported Condomless Sex and Yc-DNA Biomarker Data from Young Women Engaged in High Risk Sexual Activity in Kampala, Uganda. AIDS Behav 2024; 28:320-331. [PMID: 37751111 PMCID: PMC10803388 DOI: 10.1007/s10461-023-04177-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/11/2023] [Indexed: 09/27/2023]
Abstract
Reporting of condom-use can limit researchers' understanding of high-risk sexual behaviours. We compared self-reported condom-use with the Yc-DNA biomarker data and investigated potential factors influencing participation in, and reporting of, sexual behaviours. Self-reported data were collected using Audio Computer Assisted Self Interviews (ACASI) and samples for Yc-DNA biomarker were collected using self-administered and health worker-collected vaginal swabs from 644 women (aged 15-24 years) who were not living with HIV. Yc-DNA results and interview data were compared using McNemar-Bowker Analysis and Cohen's Kappa. Test statistics for Yc-DNA biomarker were calculated. Log Binomial models for Yc-DNA and self-reported results were conducted to assess for association. We found strong evidence (p < 0.001) for a difference between Yc-DNA and self-reported results. 13.7% of participants reported consistent condom-use with all partners, regardless of HIV status. Self-reported condom-use was discordant in 50.0% (n = 206) of cases, when compared to Yc-DNA results. Positive Yc-DNA results were found to be associated with older age (RR 1.36; 95%CI 1.04, 1.76 p = 0.023). Self-reported condom-use with partners with unknown HIV status was associated with higher education (RR 0.76; 95%CI 0.58,0.99 p = 0.043). Sensitivity analysis did not determine difference between methods for controlling for missing data. We found significant under-reporting of condomless sex in the self-reported data when compared to Yc-DNA results.
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Affiliation(s)
- Pippa Boering
- London School of Hygiene and Tropical Medicine, London, UK
| | - Janet Seeley
- London School of Hygiene and Tropical Medicine, London, UK.
- MRC/UVRI and LSHTM Uganda Research Unit, Entebbe, Uganda.
| | - Joshua Buule
- Uganda Virus Research Institute, Entebbe, Uganda
| | | | - Rachel King
- University of California, San Francisco, CA, USA
- INSERM, 60 Rue de Navacelles, 34090, Montpellier, France
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Anand P, Wu L, Mugwanya K. Integration of sexually transmitted infection and HIV pre-exposure prophylaxis services in sub-Saharan Africa: a scoping review. FRONTIERS IN REPRODUCTIVE HEALTH 2023; 5:944372. [PMID: 37457431 PMCID: PMC10338918 DOI: 10.3389/frph.2023.944372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Accepted: 05/31/2023] [Indexed: 07/18/2023] Open
Abstract
Background Persons living in sub-Saharan Africa (SSA) face disproportionate risk from overlapping epidemics of HIV and bacterial sexually transmitted infections (STIs). Pre-exposure prophylaxis (PrEP) for prevention is gradually being scaled up globally including in several settings in SSA, which represents a key opportunity to integrate STI services with HIV pre-exposure prophylaxis (PrEP). However, there is limited literature on how to successfully integrate these services, particularly in the SSA context. Prior studies and reviews on STI and PrEP services have largely focused on high income countries. Methods We conducted a scoping review of prior studies of integration of STI and PrEP services in SSA. We searched PubMed, EMBASE, Cochrane, and CINAHL, in addition to grey literature to identify studies that were published between January 2012 and December 2022, and which provided STI and PrEP services in SSA, with or without outcomes reported. Citations and abstracts were reviewed by two reviewers for inclusion. Full texts were then retrieved and reviewed in full by two reviewers. Results Our search strategy yielded 1951 records, of which 250 were retrieved in full. Our final review included 61 reports of 45 studies. Most studies were conducted in Southern (49.2%) and Eastern (24.6%) Africa. Service settings included public health clinics (26.2%), study clinics (23.0%), sexual and reproductive care settings (23.0%), maternal and child health settings (8.2%), community based services (11.5%), and mobile clinics (3.3%). A minority (11.4%) of the studies described only syndromic STI management while most (88.6%) included some form of etiological laboratory STI diagnosis. STI testing frequency ranged from baseline testing only to monthly screening. Types of STI tested for was also variable. Few studies reported outcomes related to implementation of STI services. There were high rates of curable STIs detected by laboratory testing (baseline genitourinary STI rates ranged from 5.6-30.8% for CT, 0.0-11.2% for GC, and 0.4-8.0% for TV). Discussion Existing studies have implemented a varied range of STI services along with PrEP. This range reflects the lack of specific guidance regarding STI services within PrEP programs. However, there was limited evidence regarding implementation strategies for integration of STI and PrEP services in real world settings.
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Affiliation(s)
- Priyanka Anand
- Department of Medicine, University of Washington School of Medicine, Seattle, WAUnited States
| | - Linxuan Wu
- Department of Global Health, University of Washington, Seattle, WA, United States
- Department of Epidemiology, University of Washington, Seattle, WA, United States
| | - Kenneth Mugwanya
- Department of Global Health, University of Washington, Seattle, WA, United States
- Department of Epidemiology, University of Washington, Seattle, WA, United States
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Shi L, Luo J, Chen Y, Chen L, Hu H, Qiu T, Liu X, Xu X, Chen Y, Zhang Z, Zhou Y, Lu J, Fu G. Prevalence of syphilis and chlamydia trachomatis infection among female sex workers in Jiangsu, China: Results from a multicenter cross-sectional and venue-based study. Front Public Health 2022; 10:1018724. [PMID: 36388309 PMCID: PMC9659951 DOI: 10.3389/fpubh.2022.1018724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Accepted: 10/14/2022] [Indexed: 01/28/2023] Open
Abstract
Background Female sex workers (FSWs) are considered highly vulnerable to sexually transmitted infections (STIs), but available data on the prevalence of STIs among FSWs in China is limited at a provincial level. This study aimed to evaluate the prevalence of STIs and risk factors among FSWs in Jiangsu, China. Methods We conducted a multicenter cross-sectional study in seven cities of Jiangsu to investigate the prevalence and risk factors associated with HIV and other STIs. Blood and urine were collected to test for HIV, syphilis, Hepatitis C (HCV), Neisseria gonorrhoeae (NG) and Chlamydia trachomatis (CT) infections. Results We enrolled 3,580 FSWs. The overall prevalence of bacterial STIs was 6.2% (5.4%-7.0%). The prevalence of HIV, syphilis infection, HCV, NG and CT were 0.1% (95%CI, 0.0-0.2), 1.8% (95%CI, 1.4-2.3), 0.3% (95%CI, 0.1-0.5), 0.3% (95%CI, 0.2-0.5) and 4.3% (95%CI, 3.6-5.0), respectively. Most FSWs (85.6%) reported consistent condom use with clients in the past month. Only 10.6% of FSWs reported group sex, and 68.3% self-reported HIV testing in the previous year. According to the multivariable model, having group sex in the past year (aOR, 2.521, 95%CI: 1.366-4.651) and HIV infection (aOR, 26.260, 95%CI: 2.432-283.563) were associated with a higher risk of syphilis infection. Migrants (aOR, 1.669, 95%CI: 1.163-2.395), having a history of STIs in the past year (aOR, 4.601, 95%CI: 1.003-21.118), and NG infection (aOR, 38.549, 95%CI: 11.214-132.514) were associated with a higher risk of CT infection. On the contrary, FSWs aged older than 25 were associated with lower risk of syphilis infection (25-34: aOR, 0.339, 95%CI: 0.151-0.763) and CT infection (25-34: aOR, 0.503, 95%CI: 0.316-0.802; ≥35: aOR, 0.578, 95%CI: 0.362-0.925). Conclusion This study's prevalence rates of syphilis and CT infections show the need to promote comprehensive STIs control and prevention strategies, including behavioral intervention and STIs screening, especially in younger high-risk populations. With the increasing coverage of HIV testing, integrating other STIs screening with HIV testing may be a reasonable way to implement comprehensive STIs control and prevention.
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Affiliation(s)
- Lingen Shi
- Institute for STIs and HIV Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China,Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, China
| | - Jun Luo
- Department of Clinical Central Laboratory, Jiangsu Health Vocational College, Nanjing, China
| | - Yuheng Chen
- Institute for STIs and HIV Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Liping Chen
- Institute for STIs and HIV Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Haiyang Hu
- Institute for STIs and HIV Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Tao Qiu
- Institute for STIs and HIV Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Xiaoyan Liu
- Institute for STIs and HIV Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Xiaoqin Xu
- Institute for STIs and HIV Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Yunting Chen
- Institute for STIs and HIV Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Zhi Zhang
- Institute for STIs and HIV Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Ying Zhou
- Institute for STIs and HIV Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Jing Lu
- Institute for STIs and HIV Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Gengfeng Fu
- Institute for STIs and HIV Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China,*Correspondence: Gengfeng Fu
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Muwonge TR, Nsubuga R, Ware NC, Wyatt MA, Pisarski E, Kamusiime B, Kasiita V, Nalukwago GK, Brown C, Nakyanzi A, Bagaya M, Bambia F, Ssebuliba T, Katabira E, Kyambadde P, Baeten JM, Heffron R, Celum C, Mujugira A, Haberer JE. Health Care Worker Perspectives of HIV Pre-exposure Prophylaxis Service Delivery in Central Uganda. Front Public Health 2022; 10:658826. [PMID: 35444979 PMCID: PMC9013815 DOI: 10.3389/fpubh.2022.658826] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 02/14/2022] [Indexed: 01/29/2023] Open
Abstract
Background Scale-up of HIV pre-exposure prophylaxis (PrEP) services in Uganda is ongoing. However, health care workers (HCWs) may not be aware of PrEP nor what offering this service entails. We explored the impact of standardized HCW training on the knowledge and perspectives of PrEP service delivery in Uganda. Methods We recruited HCWs from facilities that offered HIV-related services in Central Uganda. Using the Uganda Ministry of Health curriculum, we trained HCWs on PrEP services. We collected data about PrEP knowledge, preparedness, and willingness to deliver PrEP to multiple key populations before the training, immediately after the training, and >6 months later (exit). We additionally conducted 15 qualitative interviews after the exit survey. Quantitative data were analyzed by Fisher exact test, while qualitative interview data were analyzed inductively. Results We recruited 80 HCWs from 35 facilities in urban (N = 24, 30%), peri-urban (N = 30, 37%), and rural (N = 26, 33%) areas. Most HCWs were nurse counselors (N = 52, 65%) or medical/clinical officers (N = 15, 18%). Surveys indicated that awareness of PrEP increased after the training and remained high. Knowledge of PrEP (i.e., as an effective, short-term antiretroviral medication to use before HIV exposure for people at high risk) generally increased with training, but significant gaps remained, and knowledge decreased with time. Most HCWs recommended PrEP for female sex workers and HIV serodifferent couples, as well as other key populations. We observed increases in the number of HCW who felt their facility was prepared to cater for HIV prevention and provide PrEP, but this view was not universal. HCWs believed in PrEP effectiveness and embraced it as an additional HIV prevention method. Concerns included patient adherence and behavioral risk compensation. HCWs noted challenges in PrEP delivery in terms of inadequate clinic preparedness, infrastructure, staff capacity, and poor attitudes toward key populations by untrained health workers. They felt further training was needed to ensure a smooth scale-up of services without stigmatization. Conclusions Standardized training improved knowledge, willingness, and preparedness to offer PrEP services among most HCWs in Central Uganda. Ongoing training will be needed to optimize PrEP delivery services and expand delivery to levels needed for population-level impact.
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Affiliation(s)
- Timothy R. Muwonge
- Infectious Diseases Institute, Makerere University, Kampala, Uganda,*Correspondence: Timothy R. Muwonge
| | - Rogers Nsubuga
- Infectious Diseases Institute, Makerere University, Kampala, Uganda
| | | | | | | | - Brenda Kamusiime
- Infectious Diseases Institute, Makerere University, Kampala, Uganda
| | - Vicent Kasiita
- Infectious Diseases Institute, Makerere University, Kampala, Uganda
| | | | - Charles Brown
- Infectious Diseases Institute, Makerere University, Kampala, Uganda
| | - Agnes Nakyanzi
- Infectious Diseases Institute, Makerere University, Kampala, Uganda
| | - Monica Bagaya
- Infectious Diseases Institute, Makerere University, Kampala, Uganda
| | - Felix Bambia
- Infectious Diseases Institute, Makerere University, Kampala, Uganda
| | | | - Elly Katabira
- Department of Medicine, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Peter Kyambadde
- Most At-Risk Populations Initiative, Kampala, Uganda,STD/AIDS Control Program, Ministry of Health, Kampala, Uganda
| | - Jared M. Baeten
- Departments of Global Health and Epidemiology, University of Washington, Seattle, WA, United States,Gilead Sciences, Foster City, CA, United States
| | - Renee Heffron
- Departments of Global Health and Epidemiology, University of Washington, Seattle, WA, United States
| | - Connie Celum
- Departments of Global Health and Epidemiology, University of Washington, Seattle, WA, United States
| | - Andrew Mujugira
- Infectious Diseases Institute, Makerere University, Kampala, Uganda
| | - Jessica E. Haberer
- Harvard Medical School, Boston, MA, United States,Center for Global Health, Massachusetts General Hospital, Boston, MA, United States
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Mujugira A, Nakyanzi A, Nabaggala MS, Muwonge TR, Ssebuliba T, Bagaya M, Nampewo O, Sapiri O, Nyanzi KR, Bambia F, Nsubuga R, Serwadda DM, Ware NC, Baeten JM, Haberer JE. Effect of HIV Self-Testing on PrEP Adherence Among Gender-Diverse Sex Workers in Uganda: A Randomized Trial. J Acquir Immune Defic Syndr 2022; 89:381-389. [PMID: 34954718 PMCID: PMC8860206 DOI: 10.1097/qai.0000000000002895] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Accepted: 12/06/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND HIV self-testing (HIVST) and pre-exposure prophylaxis (PrEP) are complementary tools that could empower sex workers to control their HIV protection, but few studies have jointly evaluated PrEP and HIVST in any setting. METHODS The Empower Study was an open-label randomized trial in Uganda. Sex workers were offered F/tenofovir disoproxil fumarate and randomized 1:1 to monthly HIVST and quarterly in-clinic testing (intervention) or quarterly in-clinic HIV testing alone (standard of care) and followed up for 12 months. PrEP adherence was measured using electronic adherence monitoring and tenofovir diphosphate (TFV-DP) levels in dried blood spots. Adherence outcomes and sexual behaviors were compared by arm using generalized estimating equation models. RESULTS We enrolled 110 sex workers: 84 cisgender women, 14 transgender women, 10 men who have sex with men, and 2 transgender men. The median age was 23 years. The 12-month retention was 75%. Nearly all (99.4%) used ≥1 HIVST kit. The proportion with TFV-DP levels ≥700 fmol/punch in the HIVST and standard of care arms at the 3-, 6-, 9-, and 12-month visits was 2.4%, 2.3%, 0%, and 0% and 7.9%, 0%, 0%, and 0%, respectively, with no differences by randomization arm (P > 0.2). Self-reported condomless sex acts with paying partners was similar by arm [adjusted incidence rate ratio 0.70; 95% confidence interval (CI): 0.42 to 1.17; P = 0.18]. One seroconversion occurred (HIV incidence, 0.9/100 person-years); TFV-DP was not detected at any visit. CONCLUSIONS A gender-diverse sample of sex workers in Uganda used HIVST but not daily oral PrEP for HIV protection. Alternate approaches to promote PrEP use, including long-acting formulations, should be considered in this population.
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Affiliation(s)
- Andrew Mujugira
- Infectious Diseases Institute, College of Health Sciences, Makerere University, Kampala, Uganda
- Department of Epidemiology and Biostatistics, School of Public Health, College of Health Sciences, Makerere University, Kampala, Uganda
- Department of Global Health, University of Washington, Seattle, WA
| | - Agnes Nakyanzi
- Infectious Diseases Institute, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Maria S. Nabaggala
- Infectious Diseases Institute, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Timothy R. Muwonge
- Infectious Diseases Institute, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Timothy Ssebuliba
- Infectious Diseases Institute, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Monica Bagaya
- Infectious Diseases Institute, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Olivia Nampewo
- Infectious Diseases Institute, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Oliver Sapiri
- Infectious Diseases Institute, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Kikulwe R. Nyanzi
- Infectious Diseases Institute, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Felix Bambia
- Infectious Diseases Institute, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Rogers Nsubuga
- Infectious Diseases Institute, College of Health Sciences, Makerere University, Kampala, Uganda
| | - David M. Serwadda
- Department of Disease Control and Environmental Health, School of Public Health, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Norma C Ware
- Department of Global Health and Social Medicine, Harvard Medical School, Boston, MA; and
| | - Jared M. Baeten
- Department of Global Health, University of Washington, Seattle, WA
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Manguro GO, Musau AM, Were DK, Tengah S, Wakhutu B, Reed J, Plotkin M, Luchters S, Gichangi P, Temmerman M. Increased condom use among key populations using oral PrEP in Kenya: results from large scale programmatic surveillance. BMC Public Health 2022; 22:304. [PMID: 35164707 PMCID: PMC8842980 DOI: 10.1186/s12889-022-12639-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Accepted: 01/24/2022] [Indexed: 11/29/2022] Open
Abstract
Background Female sex workers (FSW) and men having sex with men (MSM) in Kenya have high rates of HIV infection. Following a 2015 WHO recommendation, Kenya initiated national scale-up of pre-exposure prophylaxis (PrEP) for all persons at high-risk. Concerns have been raised about PrEP users' potential changes in sexual behaviors such adopting condomless sex and multiple partners as a result of perceived reduction in HIV risk, a phenomenon known as risk compensation. Increased condomless sex may lead to unintended pregnancies and sexually transmitted infections and has been described in research contexts but not in the programmatic setting. This study looks at changes in condom use among FSW and MSM on PrEP through a national a scale-up program. Methods Routine program data collected between February 2017 and December 2019 were used to assess changes in condom use during the first three months of PrEP in 80 health facilities supported by a scale-up project, Jilinde. The primary outcome was self-reported condom use. Analyses were conducted separately for FSW and for MSM. Log-Binomial Regression with Generalized Estimating Equations was used to compare the incidence proportion (“risk”) of consistent condom use at the month 1, and month 3 visits relative to the initiation visit. Results At initiation, 69% of FSW and 65% of MSM reported consistent condom use. At month 3, this rose to 87% for FSW and 91% for MSM. MSM were 24% more likely to report consistent condom use at month 1 (Relative Risk [RR], 1.24, 95% Confidence Interval [CI], 1.18–1.30) and 40% more likely at month 3 (RR, 1.40, 95% CI, 1.33–1.47) compared to at initiation. FSW were 15% more likely to report consistent condom use at the month one visit (RR, 1.15, 95% CI, 1.13–1.17) and 27% more likely to report condom use on the month 3 visit (RR 1.27, 95% CI, 1.24–1.29). Conclusion Condom use increased substantially among both FSW and MSM. This may be because oral PrEP was provided as part of a combination prevention strategy that included counseling and condoms but could also be due to the low retention rates among those who initiated. Supplementary Information The online version contains supplementary material available at 10.1186/s12889-022-12639-6.
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Affiliation(s)
- Griffins O Manguro
- International Center for Reproductive Health Kenya, 3rd Avenue Nyali, P.O Box 91109-80103, Mombasa, Kenya. .,Faculty of Medicine and Health Sciences, Gent University, Gent, Belgium.
| | | | | | | | | | | | | | - Stanley Luchters
- Institute for Human Development, Aga Khan University, Nairobi, Kenya.,International Centre for Reproductive Health, Department of Obstetrics and Gynecology, Ghent University, Ghent, Belgium.,School of Population Health and Preventive Medicine, Monash University, Melbourne, Australia
| | - Peter Gichangi
- Technical University of Mombasa, Mombasa, Kenya.,Department of Public Health and Primary Care, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Marleen Temmerman
- International Center for Reproductive Health Kenya, 3rd Avenue Nyali, P.O Box 91109-80103, Mombasa, Kenya.,Department of Public Health and Primary Care, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium.,Department of Obstetrics and Gynecology, The Aga Khan University, Nairobi, Kenya
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Roberts DA, Cuadros D, Vandormael A, Gareta D, Barnabas RV, Herbst K, Tanser F, Akullian A. Predicting the Risk of Hiv-1 Acquisition in Rural South Africa Using Geospatial Data. Clin Infect Dis 2022; 75:1224-1231. [PMID: 35100612 PMCID: PMC9525068 DOI: 10.1093/cid/ciac069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Indexed: 12/04/2022] Open
Abstract
Background Accurate human immunodeficiency virus (HIV) risk assessment can guide optimal HIV prevention. We evaluated the performance of risk prediction models incorporating geospatial measures. Methods We developed and validated HIV risk prediction models in a population-based cohort in South Africa. Individual-level covariates included demographic and sexual behavior measures, and geospatial covariates included community HIV prevalence and viral load estimates. We trained models on 2012–2015 data using LASSO Cox models and validated predictions in 2016–2019 data. We compared full models to simpler models restricted to only individual-level covariates or only age and geospatial covariates. We compared the spatial distribution of predicted risk to that of high incidence areas (≥ 3/100 person-years). Results Our analysis included 19 556 individuals contributing 44 871 person-years and 1308 seroconversions. Incidence among the highest predicted risk quintile using the full model was 6.6/100 person-years (women) and 2.8/100 person-years (men). Models using only age group and geospatial covariates had similar performance (women: AUROC = 0.65, men: AUROC = 0.71) to the full models (women: AUROC = 0.68, men: AUROC = 0.72). Geospatial models more accurately identified high incidence regions than individual-level models; 20% of the study area with the highest predicted risk accounted for 60% of the high incidence areas when using geospatial models but only 13% using models with only individual-level covariates. Conclusions Geospatial models with no individual measures other than age group predicted HIV risk nearly as well as models that included detailed behavioral data. Geospatial models may help guide HIV prevention efforts to individuals and geographic areas at highest risk.
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Affiliation(s)
- D Allen Roberts
- Department of Epidemiology, University of Washington, Seattle, USA
| | - Diego Cuadros
- Department of Geography, University of Cincinnati, Cincinnati, USA
| | - Alain Vandormael
- Heidelberg Institute of Global Health, Heidelberg University, Heidelberg, Germany
| | - Dickman Gareta
- Africa Health Research Institute, KwaZulu-Natal, South Africa
| | - Ruanne V Barnabas
- Department of Epidemiology, University of Washington, Seattle, USA.,Department of Global Health, University of Washington, Seattle, USA.,Department of Medicine, University of Washington, Seattle, USA
| | - Kobus Herbst
- Africa Health Research Institute, KwaZulu-Natal, South Africa.,DSI-MRC South African Population Research Infrastructure Network (SAPRIN), Durban, South Africa
| | - Frank Tanser
- Africa Health Research Institute, KwaZulu-Natal, South Africa.,Lincoln International Institute for Rural Health, University of Lincoln, Lincoln, United Kingdom.,School of Nursing and Public Health, University of KwaZulu-Natal, Durban, South Africa.,Centre for the AIDS Programme of Research in South Africa (CAPRISA), University of KwaZulu-Natal, South Africa
| | - Adam Akullian
- Department of Global Health, University of Washington, Seattle, USA.,Institute for Disease Modeling, Bill & Melinda Gates Foundation, Seattle, USA
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Zimmerman RS, Mehrotra P, Madden T, Paul R. The Value of Assessing Self-Reported and Biological Indicators of Outcomes in Evaluating HIV Programs. Curr HIV/AIDS Rep 2021; 18:365-376. [PMID: 33993397 DOI: 10.1007/s11904-021-00560-3] [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: 04/21/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE OF REVIEW In this manuscript, we present recent findings concerning concordance and discrepancy between biological measures and self-reports of these three outcomes of HIV programs: HIV status, adherence to antiretroviral medications (ARVs) and use of and adherence to pre-exposure prophylaxis medication (PrEP), and condom use/unprotected sex. RECENT FINDINGS Recent studies suggest that three successive rapid HIV tests (for those whose first test in positive) might be reasonably inexpensive and valid biological data to collect to combine with self-reports of HIV status, dried blood spots sufficiently affordable to combine with self-reports of adherence to ARVs and use of or adherence to PrEP, and that the discrepancy between self-reports of condom use and biomarkers of unprotected sex may be relatively small in high-income countries. Additional work on assessment of incorrect condom usage and breakage, standardized self-report measures of condom use, and more private data collection methodologies in low-income settings might reduce the recent observed discrepancies even further. Concordance between self-reports of HIV and biomarkers indicating HIV positive status has varied considerably, with much lower rates in low-income countries, where the stigma of HIV is still very high. Recommendation is for combining self-report data with the results of three successive rapid tests for those testing positive. For adherence, again agreement between self-reports and a variety of more objective and/or biological measures is only moderate. Dried blood spots (DBS) may be sufficiently inexpensive in low-resource settings that this may be the best biological method to combine with self-reports. In publications over the last 8 years, the discrepancy between self-reports of condom use and biomarkers for unprotected sex may be even lower than 20% after controlling for other features of the study, particularly in high-income countries. Our results suggest that more careful assessment of incorrect condom use and breakage as reasons other than intentional misreporting should be investigated more carefully and that more private data collection methods such as audio, computer-assisted self-interviewing (ACASI) might be employed more often in low-resource settings to reduce this discrepancy in those settings further. In addition, further analysis of the discrepancy between self-reports of condom use and biomarkers should be conducted of published studies using the correct calculation methods to be more certain of these findings.
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Affiliation(s)
- Rick S Zimmerman
- College of Nursing, Wayne State University, 5557 Cass Ave., 319 Cohn Bldg, Detroit, MI, 48202, USA.
| | - Purnima Mehrotra
- Centre for Social and Behaviour Change, Ashoka University, Rajiv Gandhi Education City, Sonipat, Haryana, India
| | - Tessa Madden
- Department of Obstetrics and Gynecology, Washington University School of Medicine, St. Louis, MO, USA
| | - Rachel Paul
- Department of Obstetrics and Gynecology, Washington University School of Medicine, St. Louis, MO, USA
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Sarr M, Gueye D, Mboup A, Diouf O, Bao MDB, Ndiaye AJ, Ndiaye BP, Hawes SE, Tousset E, Diallo A, Jones F, Kane CT, Thiam S, Ndour CT, Gottlieb GS, Mboup S. Uptake, retention, and outcomes in a demonstration project of pre-exposure prophylaxis among female sex workers in public health centers in Senegal. Int J STD AIDS 2020; 31:1063-1072. [PMID: 32819210 PMCID: PMC7750667 DOI: 10.1177/0956462420943704] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The Senegal pre-exposure prophylaxis (PrEP) Demonstration Project was an open-label cohort study assessing the delivery of daily oral PrEP to HIV-negative female sex workers (FSWs) in four Ministry of Health (MoH)-run clinics in Dakar, Senegal. We assessed uptake, retention in care, and adherence over up to 12 months of follow-up as well as HIV infection rates. Between July and November 2015, 350 individuals were approached and 324 (92.6%) were preliminarily eligible. Uptake was high, with 82.4% of eligible participants choosing to enroll and take PrEP. The mean age of those enrolled was 37.7 years (SD = 8.7), and approximately half had not attended school (41.2%). Among the 267 participants who were prescribed PrEP, 79.9 and 73.4% were retained in PrEP care at 6 and 12 months, respectively. Older age among FSWs was found to be the only significant predictor of lower discontinuation. We did not find significant differences in retention by site, education, condom use, or HIV risk perception. There were no new HIV infections at follow-up. Our results showed evidence of high interest in PrEP and very good PrEP retention rates among FSWs at 12-month follow-up when offered in MoH-run clinics, with older age as the only significant predictor of higher PrEP retention. This highlights the role that these clinics can play in expanding PrEP access nationwide.
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Affiliation(s)
- Moussa Sarr
- Westat, Inc., Rockville, MD, USA
- IRESSEF: Institut de Recherche en Santé de Surveillance
Epidémiologique et de Formations, Dakar, Sénégal
- Moussa Sarr, 1600 Research Blvd, WB 258,
Rockville, MD 20850, USA.
| | - Daouda Gueye
- IRESSEF: Institut de Recherche en Santé de Surveillance
Epidémiologique et de Formations, Dakar, Sénégal
| | - Aminata Mboup
- IRESSEF: Institut de Recherche en Santé de Surveillance
Epidémiologique et de Formations, Dakar, Sénégal
| | - Ousmane Diouf
- IRESSEF: Institut de Recherche en Santé de Surveillance
Epidémiologique et de Formations, Dakar, Sénégal
| | - Mame D Bousso Bao
- IRESSEF: Institut de Recherche en Santé de Surveillance
Epidémiologique et de Formations, Dakar, Sénégal
| | - Anna Julienne Ndiaye
- IRESSEF: Institut de Recherche en Santé de Surveillance
Epidémiologique et de Formations, Dakar, Sénégal
| | - Birahim P Ndiaye
- IRESSEF: Institut de Recherche en Santé de Surveillance
Epidémiologique et de Formations, Dakar, Sénégal
| | - Stephen E Hawes
- Departments of Epidemiology and Global Health, School of Public
Health, University of Washington, Seattle, WA, USA
| | | | | | | | - Coumba T Kane
- IRESSEF: Institut de Recherche en Santé de Surveillance
Epidémiologique et de Formations, Dakar, Sénégal
- Faculte de Médicine et de Pharmacie, Université Cheikh Anta
Diop, Dakar, Sénégal
| | - Safiatou Thiam
- Conseil national de lutte contre le sida (CNLS), Dakar,
Sénégal
| | - Cheikh T Ndour
- Division de Lutte contre le Sida et les IST, Ministère de la
Santé et de l’Action Sociale, Dakar, Sénégal
| | - Geoffrey S Gottlieb
- Department of Medicine, Allergy and Infectious Diseases, Center
for Emerging and Re-Emerging Infectious Diseases and Department of Global
Health, University of Washington, Seattle, WA, USA
| | - Souleymane Mboup
- IRESSEF: Institut de Recherche en Santé de Surveillance
Epidémiologique et de Formations, Dakar, Sénégal
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