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Tripathy DM, Gupta S, Vasudevan B. Resurgence of syphilis, the great imitator. Med J Armed Forces India 2022; 78:131-135. [PMID: 35463552 PMCID: PMC9023770 DOI: 10.1016/j.mjafi.2022.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Syphilis, one of the earliest diseases to be discovered in humans, still remains an enigma when it comes to its myriad manifestations and changing epidemiological profiles. There has been a surge in cases in the last few decades due to various factors. The human immunodeficiency virus (HIV) epidemics, global travel, increased incidence of male to male sexually transmitted diseases, online relationships culminating in casual sex are few of the important factors. Increased awareness could also be a factor for increased diagnosis. The multitude of clinical features especially when it comes to secondary syphilis and the rare tertiary manifestations, which can mimic various systemic disorders still pose a diagnostic challenge to the best of venereologists and physicians. This review aims to discuss the causes of resurgence in syphilis and few recent developments in pathogenesis, which could have led to this resurgence.
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Huang L, Wu H, Yan H, Liang Y, Li Q, Shui J, Han Z, Tang S. Syphilis Testing as a Proxy Marker for a Subgroup of Men Who Have Sex With Men With a Central Role in HIV-1 Transmission in Guangzhou, China. Front Med (Lausanne) 2021; 8:662689. [PMID: 34307399 PMCID: PMC8293274 DOI: 10.3389/fmed.2021.662689] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 05/26/2021] [Indexed: 12/09/2022] Open
Abstract
Objectives: The objectives of this study were to distinguish the role of men who have sex with men (MSM) with or without syphilis testing in HIV-1 transmission and to provide molecular evidence of syphilis testing as a proxy marker for identifying the subgroup of MSM. Methods: HIV-1 transmission clusters were constructed by HIV-TRACE and Cluster Picker using HIV-1 pol sequences from 729 newly diagnosed HIV-infected MSM from 2008 to 2012 in Guangzhou, China. The role of MSM in HIV-1 transmission networks was determined by a node influence measurement and centrality analysis. The association between syphilis testing and factors related to HIV-1 transmission and antiretroviral treatment (ART) were analyzed by the Cox regression model. Results: Among HIV-infected MSM, 56.7% did not test for syphilis at the time of HIV-1 diagnosis. MSM without syphilis testing was a specific subgroup of MSM with a larger closeness centrality and clustering coefficient than the recipients of syphilis testing (P < 0.001), indicating their central position in the HIV-1 transmission networks. The median degree and radiality within HIV-1 transmission networks as well as the median K-shell scores were also greater for MSM without syphilis testing (P < 0.001), suggesting their relatively greater contribution in transmitting HIV-1 than the receipts of syphilis testing. MSM with syphilis testing usually did not disclose their occupation or were more likely to be unemployed or to take non-skilled jobs, to have a history of sexually transmitted infections (STIs), and to be AIDS patients when diagnosed with HIV-1 infection (P < 0.05). Multivariable Cox regression analysis indicated that syphilis testing per se did not promote the engagement of ART (P = 0.233) or affect the speed of CD4+ T cell count recovery after treatment (P = 0.256). Conclusions: Our study identifies syphilis testing as a proxy marker of a specific subgroup of HIV-infected MSM who refuse syphilis testing during HIV-1 diagnosis with an important role in HIV-1 transmission. Specific prevention and intervention targeting MSM without syphilis testing during HIV-1 care are urgently needed.
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Affiliation(s)
- Liping Huang
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, China
| | - Hao Wu
- Department of AIDS Control and Prevention, Guangzhou Center for Disease Control and Prevention, Guangzhou, China
| | - Huanchang Yan
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, China
| | - Yuanhao Liang
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, China
| | - Qingmei Li
- Department of AIDS Control and Prevention, Guangzhou Center for Disease Control and Prevention, Guangzhou, China
| | - Jingwei Shui
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, China
| | - Zhigang Han
- Department of AIDS Control and Prevention, Guangzhou Center for Disease Control and Prevention, Guangzhou, China.,Institute of Public Health, Guangzhou Medical University, Guangzhou, China
| | - Shixing Tang
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, China.,Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, China
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3
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Rana J, Guiang CB, Lisk R, Shahin R, Brunetta J, Mitterni L, Grewal R, Tan DHS, Gilbert M, Yeung A, Kwag M, Logie CH, Bacon J, Gesink D, Burchell AN. Survey of Health Care Providers' Practices and Opinions Regarding Bacterial Sexually Transmitted Infection Testing Among Gay, Bisexual, and Other Men Who Have Sex With Men. Sex Transm Dis 2021; 48:94-102. [PMID: 33003183 DOI: 10.1097/olq.0000000000001287] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
BACKGROUND Rates of bacterial sexually transmitted infections (STIs) continue to rise among gay, bisexual, and other men who have sex with men (GBMSM) globally. Testing and treatment can prevent morbidity and transmission. However, testing rates remain suboptimal. METHODS In 2018, we conducted an online cross-sectional survey to explore STI testing ordering practices, 14 potential barriers for testing and 11 possible ways to improve testing from the perspective of health care providers in Toronto, Ontario. An estimated 172 providers were invited from primary care and sexual health clinic settings. Providers were eligible to complete the survey if they provided care for ≥1 GBMSM per week and were involved in the decision-making process in providing STI tests. We used descriptive statistics to summarize survey responses. RESULTS Ninety-five providers (55% response rate) participated, of whom 68% worked in primary care and 32% in sexual health settings. Most (66%) saw ≤10 GBMSM clients per week. In primary care (65%) and sexual health (40%) clinic settings, insufficient consultation time was the most common barrier to STI testing. In primary care, other common barriers included difficulty introducing testing during unrelated consultations (53%), forgetting (47%), and patients being sexually inactive (31%) or declining testing (27%). The following were most likely to improve testing: express/fast-track testing services (89%), provider alerts when patients are due for testing (87%), patient-collected specimens (84%), nurse-led STI testing (79%), and standing orders (79%). CONCLUSIONS Promising interventions to improve bacterial STI testing included initiatives that simplify and expedite testing and expand testing delivery to other health care professionals.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Anna Yeung
- From the MAP Centre for Urban Health Solutions, Li Ka Shing Knowledge Institute, St Michael's Hospital, Unity Health Toronto
| | | | | | | | - Dionne Gesink
- Dalla Lana School of Public Health, University of Toronto
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Ramadhani HO, Crowell TA, Nowak RG, Ndembi N, Kayode BO, Kokogho A, Ononaku U, Shoyemi E, Ekeh C, Adebajo S, Baral SD, Charurat ME. Association of age with healthcare needs and engagement among Nigerian men who have sex with men and transgender women: cross-sectional and longitudinal analyses from an observational cohort. J Int AIDS Soc 2020; 23 Suppl 6:e25599. [PMID: 33000907 PMCID: PMC7527771 DOI: 10.1002/jia2.25599] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 07/10/2020] [Accepted: 07/20/2020] [Indexed: 01/02/2023] Open
Abstract
INTRODUCTION Young men who have sex with men (MSM) and transgender women (TGW) face stigmas that hinder access to healthcare. The aim of the study was to understand age-related determinants of healthcare needs and engagement among MSM and TGW. METHODS The TRUST/RV368 cohort provides integrated prevention and treatment services for HIV and other sexually transmitted infections (STIs) tailored to the needs of sexual and gender minorities. MSM and TGW aged ≥16 years in Abuja and ≥18 years Lagos, Nigeria, completed standardized behavioural questionnaires and were tested for HIV, Neisseria gonorrhoeae (NG) and Chlamydia trachomatis (CT) every three months for up to 18 months. Logistic regression was used to estimate adjusted odds ratios (aORs) for associations of age and other factors with outcomes of interest upon enrolment, including HIV care continuum steps - HIV testing, ART initiation and viral suppression <1000 copies/mL. Cox proportional hazards models were used to calculate adjusted hazard ratios (aHRs) for associations with incident infections. RESULTS Between March 2013 and February 2019, 2123 participants were enrolled with median age 23 (interquartile range 21 to 27) years. Of 1745 tested, 865 (49.6%) were living with HIV. HIV incidence was 11.6/100 person-years [PY], including 23.1/100PY (95% CI 15.5 to 33.1) among participants aged 16 to 19 years and 23.8/100 PY (95% CI 13.6 to 39.1) among TGW. Compared to participants aged ≥25 years, those aged 16 to 19 years had decreased odds of prior HIV testing (aOR 0.40 [95% CI 0.11 to 0.92]), disclosing same-sex sexual practices to healthcare workers (aOR 0.53 [95% CI 0.36 to 0.77]) and receiving HIV prevention information (aOR 0.60 [95% CI 0.41 to 0.87]). They had increased odds of avoiding healthcare (aOR 1.94 [95% CI 1.3 to 2.83]) and engaging in transactional sex (aOR 2.76 [95% CI 1.92 to 3.71]). Age 16 to 19 years was independently associated with increased incidence of HIV (aHR 4.09 [95% CI 2.33 to 7.49]), NG (aHR 3.91 [95% CI 1.90 to 8.11]) and CT (aHR 2.74 [95% CI 1.48 to 5.81]). CONCLUSIONS Young MSM and TGW demonstrated decreased healthcare engagement and higher incidence of HIV and other STIs as compared to older participants in this Nigerian cohort. Interventions to address unique obstacles to healthcare engagement by adolescents and young adults are needed to curb the spread of HIV and other STIs among MSM and TGW in Nigeria.
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Affiliation(s)
- Habib O Ramadhani
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Trevor A Crowell
- Henry M. Jackson Foundation for the Advancement of Military Medicine Inc, Bethesda, MD, USA
- U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, MD, USA
| | - Rebecca G Nowak
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, USA
| | | | | | - Afoke Kokogho
- U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, MD, USA
- HJF Medical Research International, Abuja, Federal Capital Territory, Nigeria
| | | | | | - Charles Ekeh
- Population Council, Abuja, Federal Capital Territory, Nigeria
| | - Sylvia Adebajo
- Maryland Global Initiatives Corporation- A University of Maryland Baltimore Affiliate, Abuja, Nigeria
| | - Stefan D Baral
- Johns Hopkins School of Public Health, Baltimore, MD, USA
| | - Manhattan E Charurat
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, USA
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5
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Turpin R, Rosario AD, Dyer T. Barriers to syphilis testing among men who have sex with men: a systematic review of the literature. Sex Health 2020; 17:201-213. [PMID: 32586417 DOI: 10.1071/sh19044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Accepted: 04/11/2020] [Indexed: 11/23/2022]
Abstract
Men who have sex with men (MSM) represent the highest risk group for syphilis in the United States and several other countries. Improving uptake of syphilis testing among MSM requires understanding key barriers to testing in this population. Using preferred reporting items for systematic reviews and meta-analyses (PRISMA) guidelines, a systematic review to assess proportions of syphilis testing among MSM and identify social, structural, and individual barriers to syphilis testing was conducted. All searches were conducted through the University of Maryland world catalogue search engine. Studies that measured syphilis testing in a sample of MSM were included. All studies were assessed for bias using JBI-MAStARI instruments. Studies were synthesised based on sample size, years of data collection, study selection method (e.g. hospital or clinic-based, community/venue-based), location (e.g. USA-based, other countries) and results of the bias assessment. For studies measuring barriers associated with testing, the measure of association, point estimate and statistical significance was assessed. Of 848 studies found in the initial search, 24 were included in the final review. The largest difference in syphilis testing proportions was based on hospital or clinic-based sampling (50-87%) compared with venue/community-based and online sampling (31-38%). Socioeconomic factors (four items, four studies, OR 0.23 to 0.68), healthcare interactions six items, five studies, OR 0.09 to 0.69) and community/interpersonal factors (seven items, five studies, OR 0.07 to 0.58) were identified as barriers to testing. Barriers to syphilis testing among MSM include socioeconomic factors, healthcare-related factors and community/interpersonal factors. Improving overall routine utilisation of healthcare services is an especially important focal point in testing promotion.
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Affiliation(s)
- Rodman Turpin
- University of Maryland, College Park, School of Public Health, Department of Epidemiology and Biostatistics, 4200 Valley Drive #2242, College Park, MD 20742, USA; and Corresponding author.
| | - Andre D Rosario
- Howard University Hospital, Psychiatry and Behavioral Sciences, 2041 Georgia Avenue NW, Washington, D.C. 20060, USA
| | - Typhanye Dyer
- University of Maryland, College Park, School of Public Health, Department of Epidemiology and Biostatistics, 4200 Valley Drive #2242, College Park, MD 20742, USA
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Brener L, Murphy DA, Ellard J, Cama E, Fraser N, Murray J. Knowledge, attitudes and practices related to hepatitis C among gay and bisexual men in the era of direct-acting antivirals: implications for treatment and prevention. CULTURE, HEALTH & SEXUALITY 2020; 22:551-567. [PMID: 31131720 DOI: 10.1080/13691058.2019.1615125] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 05/01/2019] [Indexed: 06/09/2023]
Abstract
Increases in hepatitis C (HCV) infections among gay and bisexual men have recently been reported in a number of countries, with sexual transmission being the primary route of infection. Given that in countries such as Australia most gay and bisexual men living with HIV are already engaged in clinical care - as are an increasing number of HIV-negative men - there is potential for reducing onward HCV transmission through proactive testing and treatment. This study explored knowledge, attitudes and practices related to HCV among 194 gay and bisexual men collected through an online survey in Australia. Overall, respondents had high levels of HCV knowledge; however, only 76% knew about the availability of new treatments for HCV. Men's knowledge of their own HCV testing history was uncertain, with one in six unaware if they had ever been tested. Among men who reported recent drug injecting, one-third had been injected by someone else, and two-thirds had injected someone else, indicating a subculture of cross-administering within sexualised drug-use networks. We argue that the robust sexual, socio-cultural and clinical infrastructure that has been developed by - and for - gay and bisexual men around HIV care and prevention creates the potential for reducing HCV in this group.
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Affiliation(s)
- Loren Brener
- Centre for Social Research in Health, UNSW Sydney, NSW, Australia
| | - Dean A Murphy
- Centre for Social Research in Health, UNSW Sydney, NSW, Australia
- Department of Gender and Cultural Studies, University of Sydney, Sydney, NSW, Australia
- Kirby Institute for Infection and Immunity in Society, UNSW Sydney, NSW, Australia
| | - Jeanne Ellard
- Australian Federation of AIDS Organisations, Newtown, NSW, Australia
| | - Elena Cama
- Centre for Social Research in Health, UNSW Sydney, NSW, Australia
| | - Neil Fraser
- Positive Life NSW, Surry Hills, NSW, Australia
| | - Joel Murray
- Positive Life NSW, Surry Hills, NSW, Australia
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Reitsema M, Heijne J, Visser M, van Sighem A, Schim van der Loeff M, Op de Coul ELM, Bezemer D, Wallinga J, van Benthem BHB, Xiridou M. Impact of frequent testing on the transmission of HIV and N. gonorrhoeae among men who have sex with men: a mathematical modelling study. Sex Transm Infect 2019; 96:361-367. [PMID: 31801895 DOI: 10.1136/sextrans-2018-053943] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 09/03/2019] [Accepted: 11/21/2019] [Indexed: 11/03/2022] Open
Abstract
OBJECTIVES To investigate the impact and efficiency of combined testing for HIV and other STIs on HIV and STI transmission among men who have sex with men (MSM) and to assess what subgroups of MSM should be targeted for frequent testing. METHODS We developed an agent-based transmission model that simulates infection with HIV or Neisseria gonorrhoeae (NG) among MSM. We examined scenarios with increased percentages of MSM getting tested six monthly, among all MSM or only specific subgroups of MSM (defined according to recent gonorrhoea, number of partners and engagement in condomless anal intercourse (CAI)) and scenarios with reduced intervals between HIV/STI tests. RESULTS The most efficient strategies were those with increased percentage of MSM getting tested every 6 months among MSM with a recent gonorrhoea diagnosis; or among MSM who had CAI and ≥10 partners; or MSM who had ≥10 partners. Over 10 years, these strategies resulted in 387-718 averted HIV infections and required 29-164 additional HIV tests per averted HIV infection or one to seven additional gonorrhoea tests per averted NG infection. The most effective strategy in reducing HIV transmission was the one where the intervals between tests were reduced by half, followed by the strategy with increased percentage of MSM getting tested every 6 months among all MSM. Over 10 years, these strategies resulted in 1362 and 1319 averted HIV infections, but required 663 and 584 additional HIV tests per averted HIV infection, respectively. CONCLUSIONS Targeting MSM with recent gonorrhoea diagnosis or MSM with many partners is efficient in terms of HIV/STI tests needed to prevent new HIV or NG infections. Major reductions in HIV incidence can be achieved with consistent HIV/STI testing every 6 months among larger groups, including low-risk MSM. To impede HIV transmission, frequent testing should be combined with other prevention measures.
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Affiliation(s)
- Maarten Reitsema
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands.,Department of Biomedical Data Sciences, Leiden University Medical Centre, Leiden, The Netherlands
| | - Janneke Heijne
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
| | - Maartje Visser
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
| | | | - Maarten Schim van der Loeff
- Department of Infectious Diseases, Public Health Service Amsterdam, Amsterdam, The Netherlands.,Department of Internal Medicine, Amsterdam University Medical Centre, Amsterdam, The Netherlands
| | - Eline L M Op de Coul
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
| | | | - Jacco Wallinga
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands.,Department of Biomedical Data Sciences, Leiden University Medical Centre, Leiden, The Netherlands
| | - Birgit H B van Benthem
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
| | - Maria Xiridou
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
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8
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HIV Testing With and Without a Clinical Consultation Among Men Who Have Sex With Men: A Randomized Controlled Trial. J Acquir Immune Defic Syndr 2019; 78:406-412. [PMID: 29608445 DOI: 10.1097/qai.0000000000001688] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Increasing the frequency of HIV testing among men who have sex with men (MSM) maximizes the preventive effect of antiretroviral therapy, by reducing time to diagnosis and treatment. SETTING Melbourne Sexual Health Centre, Australia. METHODS This randomized controlled trial evaluated whether access to testing, without seeing a clinician would increase testing frequency. MSM attending for HIV testing between July 2014 and April 2015 were randomized in 1:1 ratio to the intervention arm (access to HIV and syphilis testing at 300 pathology centers, without requiring consultations) or the control arm (consultation at every test), without blinding. The primary outcome was the incidence of HIV testing over 12 months. RESULTS Of 443 men referred, 422 were randomized, 3 HIV positives at baseline were excluded, and 419 were analyzed. Of 208 control, 202 (97.1%) and 200 (94.8%) of 211 intervention group members were followed to 12 months. The intervention group had 453 tests in 205.6 person-years, incidence rate was 2.2 (95% confidence interval [CI]: 2.0 to 2.4) tests per year. The control group had 432 tests during 204.0 person-years, incidence rate was 2.1 (95% CI: 1.9 to 2.3) tests per year, and incidence rate ratio was 1.04 (95% CI: 0.89 to 1.2; P = 0.63). The annual rate of consultations was as follows: intervention, 1.61 (95% CI: 1.44 to 1.79); controls, 2.12 (95% CI: 1.92 to 2.33); rate ratio, 0.76 (95% CI: 0.65 to 0.88; P = 0.0001). There was no difference in quality of life scores (P = 0.61). CONCLUSIONS MSM permitted HIV and syphilis testing outside of clinical consultations did not test more frequently than controls but had 24% fewer consultations, reducing service demand. TRIAL REGISTRATION ACTRN12614000760673.
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Abstract
OBJECTIVES To assess the cost-effectiveness of increased consistent HIV testing among MSM in the Netherlands. METHODS Among MSM testing at sexually transmitted infection clinics in the Netherlands in 2014-2015, approximately 20% tested consistently every 6 months. We examined four scenarios with increased percentage of MSM testing every 6 months: a small and a moderate increase among all MSM; a small and a moderate increase only among MSM with at least 10 partners in the preceding 6 months. We used an agent-based model to calculate numbers of HIV infections and AIDS cases prevented with increased HIV testing. These numbers were used in an economic model to calculate costs, quality-adjusted life-years (QALYs), and incremental cost-effectiveness ratios (ICERs) due to increased testing, over 2018-2027, taking a healthcare payer perspective. RESULTS A small increase in the percentage testing every 6 months among all MSM resulted in 490 averted HIV infections and an average ICER of &OV0556;27 900/QALY gained. A moderate increase among all MSM, resulted in 1380 averted HIV infections and an average ICER of &OV0556;36 700/QALY gained. Both were not cost-effective, with a &OV0556;20 000 willingness-to-pay threshold. Increasing the percentage testing every 6 months only among MSM with at least 10 partners in the preceding 6 months resulted in less averted HIV infections than increased testing among all MSM, but was on average cost-saving. CONCLUSION Increased HIV testing can prevent considerable numbers of new HIV infections among MSM, but may be cost-effective only if targeted at high-risk individuals, such as those with many partners.
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Burchell AN, Lisk R, Yeung A, Rana J, Bacon J, Brunetta J, Gilbert M, Gesink D, Grewal R, Guiang CB, Kwag M, Logie CH, Mitterni L, Shahin R, Tan DH. Community-Directed Bacterial Sexually Transmitted Infection Testing Interventions Among Men Who Have Sex With Men: Protocol for an E-Delphi Study in Toronto, Canada. JMIR Res Protoc 2019; 8:e13801. [PMID: 31274111 PMCID: PMC6637728 DOI: 10.2196/13801] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 05/28/2019] [Accepted: 05/29/2019] [Indexed: 01/17/2023] Open
Abstract
Background HIV-positive and HIV-negative (gay, bisexual, and other) men who have sex with men (MSM) have experienced a dramatic increase in bacterial sexually transmitted infections (STIs)—syphilis, gonorrhea, and chlamydia. STI testing and treatment mitigate adverse health outcomes and substantially reduce transmission; yet, testing rates remain below recommended levels. Innovation is needed to produce the required increases in testing levels, frequency, and the use of appropriate testing technologies in ways that are engaging, nonstigmatizing, and acceptable to men. Objective The aim of this study is to build consensus with regard to interventions with the greatest potential for improving local STI testing services for MSM communities in Toronto, Canada. Methods Following a literature review of evidence regarding the effectiveness of novel testing interventions, and focus groups, and surveys to describe local barriers and facilitators of testing among MSM, we will conduct a Web-based, modified Delphi study (e-Delphi). We will form expert panels of community members and STI test providers. Panelists will rate potential interventions in terms of their priority, using a 7-point Likert scale from definitely not a priority to definitely a priority. They will also rank their preferences by selecting their top 3 preferred interventions. Surveys will be distributed in 3 rounds, with feedback on the distribution of responses from preceding rounds provided in rounds 2 and 3. We will define consensus as having ≥60% (18/30) members indicate a preference within 2 adjacent response points. Qualitative data on disagreements will be obtained using open-ended text responses to explain for ratings and rankings that are different from the majority. Results On the basis of a literature review and identification of barriers and facilitators to STI testing among community members and test providers in Toronto, we have selected 8 potential interventions for inclusion in the e-Delphi panel surveys. These include 4 interventions that streamline STI testing for asymptomatic individuals, 2 interventions that are targeted at clients and 2 interventions that are targeted at providers. Conclusions Findings will provide community direction for informed decision making regarding the implementation of STI testing interventions in this setting. They will characterize the intervention climate for innovation to STI testing services, including perceived needs for changes to test delivery, relative priorities for change, and readiness for implementation. These methods may be transferable to other urban jurisdictions experiencing similar epidemics and for other contexts where stakeholder input is needed to manage sensitive areas of concern. International Registered Report Identifier (IRRID) PRR1-10.2196/13801
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Affiliation(s)
- Ann N Burchell
- Centre for Urban Health Solutions, Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, ON, Canada.,Department of Family and Community Medicine, St Michael's Hospital, Toronto, ON, Canada
| | | | - Anna Yeung
- Centre for Urban Health Solutions, Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, ON, Canada
| | - Jayoti Rana
- Centre for Urban Health Solutions, Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, ON, Canada
| | - Jean Bacon
- Ontario HIV Treatment Network, Toronto, ON, Canada
| | | | - Mark Gilbert
- BC Centre for Disease Control, Vancouver, BC, Canada
| | - Dionne Gesink
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
| | - Ramandip Grewal
- Centre for Urban Health Solutions, Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, ON, Canada
| | - Charlie B Guiang
- Department of Family and Community Medicine, St Michael's Hospital, Toronto, ON, Canada.,Hassle Free Clinic, Toronto, ON, Canada
| | - Michael Kwag
- Community-Based Research Centre, Vancouver, BC, Canada
| | - Carmen H Logie
- Factor-Inwentash Faculty of Social Work, University of Toronto, Toronto, ON, Canada
| | | | | | - Darrell Hs Tan
- Centre for Urban Health Solutions, Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, ON, Canada
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11
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Monteiro SS, Brigeiro M, Vilella WV, Mora C, Parker R. Challenges facing HIV treatment as prevention in Brazil: an analysis drawing on literature on testing. CIENCIA & SAUDE COLETIVA 2019; 24:1793-1807. [PMID: 31166513 DOI: 10.1590/1413-81232018245.16512017] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 08/27/2017] [Indexed: 11/22/2022] Open
Abstract
According to current global AIDS guidelines, HIV testing is key to the success of the 'treatment as prevention' (TasP) strategy and the control of AIDS. In view of Brazil's commitment to these guidelines, this article characterizes the principles and justifications underpinning TasP and discusses implementation challenges. The analysis draws on a systematic review of the literature (2005 to 2015) on recruitment and testing strategies for men who have sex with men. This approach was adopted based on the assumption that current knowledge on HIV testing can offer valuable insights into the foundations of global AIDS policies and their uptake in local contexts. Based on the analysis of the 65 articles selected, we suggest that TasP represents a shift in the AIDS prevention paradigm. There is an overlap between prevention and care and the new approach places major emphasis on biomedical and psychological knowledge. The TasP approach fails to address the factors associated with HIV vulnerability and the stigma surrounding AIDS and undermines the participation of activists and PLWHA as autonomous producers of preventive of preventive practices. We argue that, to ensure the effective implementation of TasP in Brazil, it is necessary to discuss issues such as the protection of human rights and the structural problems facing Brazil's public health system.
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Affiliation(s)
- Simone Souza Monteiro
- Laboratório de Educação em Ambiente e Saúde, Instituto Oswaldo Cruz, Fiocruz. Av. Brasil 4365/Pavilhão Lauro Travassos, Manguinhos. 21045-900 Rio de Janeiro RJ Brasil.
| | - Mauro Brigeiro
- Laboratório de Educação em Ambiente e Saúde, Instituto Oswaldo Cruz, Fiocruz. Av. Brasil 4365/Pavilhão Lauro Travassos, Manguinhos. 21045-900 Rio de Janeiro RJ Brasil.
| | - Wilza Vieira Vilella
- Programa de Pós-Graduação em Saúde Coletiva, Universidade Federal de São Paulo. São Paulo SP Brasil
| | - Claudia Mora
- Departamento de Políticas e Instituições de Saúde, Instituto de Medicina Social, Universidade do Estado do Rio de Janeiro. Rio de Janeiro RJ Brasil
| | - Richard Parker
- Instituto de Estudos de Saúde Coletiva, Universidade Federal do Rio de Janeiro. Rio de Janeiro RJ Brasil
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12
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Li P, Yuan T, Fitzpatrick T, Smith K, Zhao J, Wu G, Ouyang L, Wang Y, Zhang K, Zhou Y, Li M, Chen D, Li L, Cai W, Cai Y, Zou H. Association between rectal douching and HIV and other sexually transmitted infections among men who have sex with men: a systematic review and meta-analysis. Sex Transm Infect 2019; 95:428-436. [PMID: 31073094 DOI: 10.1136/sextrans-2019-053964] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 04/13/2019] [Accepted: 04/18/2019] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Men who have sex with men (MSM) are disproportionately affected by HIV and other STIs worldwide. Rectal douching, which is commonly used by MSM in preparation for anal sex, may increase the risk of HIV and other STIs by injuring the rectal mucosa. Results from individual studies reporting associations between rectal douching and HIV and other STIs among MSM are inconsistent. We performed a systematic review and meta-analysis to estimate the association between rectal douching and HIV and other STIs among MSM. METHODS We searched PubMed, Embase, Scopus and Web of Science for studies published from January 1970 to November 2018. Studies that reported ORs and 95% CIs of associations between rectal douching and infection with HIV/STIs, or reported enough data to calculate these estimates, were included. We assessed risk of bias using the Newcastle-Ottawa Scale. ORs were pooled using a random effects model. RESULTS Twenty-eight eligible studies were identified in our review, of which 24 (20 398 participants) were included in the meta-analysis. Rectal douching was associated with increased odds of infection with HIV (OR 2.80, 95% CI 2.32 to 3.39), and any STI other than HIV (including hepatitis B virus (HBV), hepatitis C virus (HCV), chlamydia, gonorrhoea, syphilis and human papillomavirus) (OR 2.46, 95% CI 1.95 to 3.11) among MSM. For specific STIs, douching was associated with increased odds of viral hepatitis (HBV, HCV) (OR 3.29, 95% CI 2.79 to 3.87), and chlamydia or gonorrhoea (OR 3.25, 95% CI 2.02 to 5.23). These associations remained significant in studies that adjusted for potential confounders. CONCLUSION Rectal douching may put MSM at increased risk for infection with HIV and other STIs. Longitudinal studies are needed to clarify this association, and health education materials should inform men of the potential for increased risk of infection with rectal douching.
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Affiliation(s)
- Peiyang Li
- School of Public Health, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Tanwei Yuan
- School of Public Health (Shenzhen), Sun Yat-Sen University, Shenzhen, Guangdong, China
| | | | - Kumi Smith
- School of Public Health, University of Minnesota Twin Cities, Minneapolis, Minnesota, USA
| | - Jin Zhao
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Guohui Wu
- Institute for AIDS/STD Control and Prevention, Chongqing Center for Disease Control and Prevention, Chongqing, China
| | - Lin Ouyang
- Institute for AIDS/STD Control and Prevention, Chongqing Center for Disease Control and Prevention, Chongqing, China
| | - Ying Wang
- School of Public Health, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Kechun Zhang
- Shenzhen Longhua District Center for Disease Control and Prevention, Shenzhen, China
| | - Yiguo Zhou
- School of Public Health (Shenzhen), Sun Yat-Sen University, Shenzhen, Guangdong, China
| | - Meijuan Li
- School of Public Health (Shenzhen), Sun Yat-Sen University, Shenzhen, Guangdong, China
| | - Dahui Chen
- School of Public Health (Shenzhen), Sun Yat-Sen University, Shenzhen, Guangdong, China
| | - Linghua Li
- Center for Infectious Diseases, Guangzhou Eighth People's Hospital, Guangzhou, Guangdong, China
| | - Weiping Cai
- Center for Infectious Diseases, Guangzhou Eighth People's Hospital, Guangzhou, Guangdong, China
| | - Yong Cai
- School of Public Health, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Huachun Zou
- School of Public Health (Shenzhen), Sun Yat-Sen University, Shenzhen, Guangdong, China .,Kirby Institute, University of New South Wales, Sydney, New South Wales, Australia
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13
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McCoy SI, Buzdugan R, Grimball R, Natoli L, Mejia CM, Klausner JD, McGrath MR. Stick To It: pilot study results of an intervention using gamification to increase HIV screening among young men who have sex with men in California. Mhealth 2018; 4:40. [PMID: 30363751 PMCID: PMC6182020 DOI: 10.21037/mhealth.2018.09.04] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 08/29/2018] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND In the United States, young men who have sex with men (YMSM) experience a disproportionate burden of HIV and sexually transmitted infections (STIs). Mobile health (mHealth) interventions, including those that incorporate elements of games ("gamification"), have the potential to improve YMSM engagement in desirable sexual health services and behaviors. Gamification leverages theory and tools from behavioral science to motivate people to engage in a behavior in a context of fun. The objective of the study was to determine whether an intervention using gamification is acceptable to YMSM in California and potentially increases repeat HIV screening. METHODS Eligible YMSM were: (I) 18-26 years, (II) born as and/or self-identified as male, (III) reported male sexual partners, and (IV) lived in a zip code adjacent to one of the two study clinics in Oakland and Hollywood, California. The gamification intervention, Stick To It, had four components: (I) recruitment (clinic-based and online), (II) online enrollment, (III) online activities, and (IV) 'real-world' activities at the clinic. Participants earned points through online activities that could be redeemed for a chance to win prizes during HIV/STI screening and care visits. The primary outcome was intervention acceptability measured with participant engagement data and in-depth interviews. The secondary outcome was the intervention's preliminary effectiveness on repeat HIV screening within 6 months, restricted to the subset of men who provided consent for review of medical records and who had ≥6 months of follow-up. Outcomes were compared to a historical control group of similar YMSM who attended study clinics in the 12 months prior to intervention implementation. RESULTS Overall, 166 of 313 (53%) eligible YMSM registered. After registration, 93 (56%) participants completed enrollment and 31 (19%) completed ≥1 online activity in the subsequent 6 months. Points were redeemed in clinic by 11% of the 166 users (27% and 5% of those who enrolled in the clinic and online, respectively). Despite moderate engagement, participants provided a positive assessment of the program in interviews, reporting that the inclusion of game elements was motivating. The analysis of repeat HIV testing was assessed among 31 YMSM who consented to medical record review and who had ≥6 months of follow-up. During follow-up, 15 (48%) received ≥2 HIV tests compared to 157 (30%) of a historical comparison group of 517 similar YMSM who lived in the same zip codes and who received care at the same clinics before the intervention (OR =2.15, 95% CI: 1.03-4.47, P=0.04). CONCLUSIONS Engagement in the intervention was modest, with YMSM who enrolled in a clinic more actively engaged than YMSM who enrolled online. Among the subset of participants recruited in the clinic, repeat HIV screening was higher than a comparison group of similar YMSM attending the same clinic in the prior year.
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Affiliation(s)
- Sandra I. McCoy
- School of Public Health, University of California, Berkeley, CA, USA
| | - Raluca Buzdugan
- School of Public Health, University of California, Berkeley, CA, USA
| | - Reva Grimball
- School of Public Health, University of California, Berkeley, CA, USA
| | - Lauren Natoli
- Public Health Division, AIDS Healthcare Foundation, Los Angeles, CA, USA
| | | | - Jeffrey D. Klausner
- David Geffen School of Medicine, University of California, Los Angeles, CA, USA
- Fielding School of Public Health, University of California, Los Angeles, CA, USA
| | - Mark R. McGrath
- Public Health Division, AIDS Healthcare Foundation, Los Angeles, CA, USA
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14
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Clutterbuck D, Asboe D, Barber T, Emerson C, Field N, Gibson S, Hughes G, Jones R, Murchie M, Nori AV, Rayment M, Sullivan A. 2016 United Kingdom national guideline on the sexual health care of men who have sex with men. Int J STD AIDS 2018:956462417746897. [PMID: 29334885 DOI: 10.1177/0956462417746897] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
This guideline is intended for use in UK Genitourinary medicine clinics and sexual health services but is likely to be of relevance in all sexual health settings, including general practice and Contraception and Sexual Health (CASH) services, where men who have sex with men (MSM) seek sexual health care or where addressing the sexual health needs of MSM may have public health benefits. For the purposes of this document, MSM includes all gay, bisexual and all other males who have sex with other males and both cis and trans men. This document does not provide guidance on the treatment of particular conditions where this is covered in other British Association for Sexual Health and HIV (BASHH) Guidelines but outlines best practice in multiple aspects of the sexual health care of MSM. Where prevention of sexually transmitted infections including HIV can be addressed as an integral part of clinical care, this is consistent with the concept of combination prevention and is included. The document is designed primarily to provide guidance on the direct clinical care of MSM but also makes reference to the design and delivery of services with the aim of supporting clinicians and commissioners in providing effective services. Methodology This document was produced in accordance with the guidance set out in the BASHH CEG's document 'Framework for guideline development and assessment' published in 2010 at http://www.bashh.org/guidelines and with reference to the Agree II instrument. Following the production of the updated framework in April 2015, the GRADE system for assessing evidence was adopted and the draft recommendations were regraded. Search strategy (see also Appendix 1) Ovid Medline 1946 to December 2014, Medline daily update, Embase 1974 to December 2014, Pubmed NeLH Guidelines Database, Cochrane library from 2000 to December 2014. Search language English only. The search for Section 3 was conducted on PubMed to December 2014. Priority was given to peer-reviewed papers published in scientific journals, although for many issues evidence includes conference abstracts listed on the Embase database. In addition, for 'Identification of problematic recreational drug and alcohol use' section and 'Sexual problems and dysfunctions in MSM' section, searches included PsycINFO. Methods Article titles and abstracts were reviewed and if relevant the full text article was obtained. Priority was given to randomised controlled trial and systematic review evidence, and recommendations made and graded on the basis of best available evidence. Piloting and feedback The first draft of the guideline was circulated to the writing group and to a small group of relevant experts, third sector partners and patient representatives who were invited to comment on the whole document and specifically on particular sections. The revised draft was reviewed by the CEG and then reviewed by the BASHH patient/public panel and posted on the BASHH website for public consultation. The final draft was piloted before publication. Guideline update The guidelines will be reviewed and revised in five years' time, 2022.
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Affiliation(s)
| | - David Asboe
- 2 Chelsea and Westminster Healthcare NHS Foundation Trust, London, UK
| | - Tristan Barber
- 2 Chelsea and Westminster Healthcare NHS Foundation Trust, London, UK
| | | | - Nigel Field
- 4 Public Health England, London, UK
- 5 University College London, London, UK
| | | | | | - Rachael Jones
- 2 Chelsea and Westminster Healthcare NHS Foundation Trust, London, UK
| | | | - Achyuta V Nori
- 8 8945 Guy's and St Thomas' NHS Foundation Trust , London, UK
| | - Michael Rayment
- 2 Chelsea and Westminster Healthcare NHS Foundation Trust, London, UK
| | - Ann Sullivan
- 9 BASHH CEG, BASHH 2017 Registered Office, Macclesfield, UK
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15
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Visser M, Heijne JCM, Hogewoning AA, van Aar F. Frequency and determinants of consistent STI/HIV testing among men who have sex with men testing at STI outpatient clinics in the Netherlands: a longitudinal study. Sex Transm Infect 2017; 93:396-403. [PMID: 28159917 PMCID: PMC5574382 DOI: 10.1136/sextrans-2016-052918] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 12/02/2016] [Accepted: 01/04/2017] [Indexed: 12/13/2022] Open
Abstract
Objectives Men who have sex with men (MSM) are at highest risk for STIs and HIV infections in the Netherlands. However, official guidelines on STI testing among MSM are lacking. They are advised to test for STIs at least every six months, but their testing behaviour is not well known. This study aimed to get insight into the proportion and determinants of consistent 6-monthly STI testing among MSM testing at STI outpatient clinics in the Netherlands. Methods This study included longitudinal surveillance data of STI consultations among MSM from all 26 STI outpatient clinics in the Netherlands between 1 June 2014 and 31 December 2015. Multinomial logistic regression analysis was used to identify determinants of consistent 6-monthly testing compared with single testing and inconsistent testing. Determinants of time between consultations among men with multiple consultations were analysed using a Cox Prentice-Williams-Peterson gap-time model. Results A total of 34 605 STI consultations of 18 634 MSM were included. 8966 (48.1%) men had more than one consultation, and 3516 (18.9%) men tested consistently 6-monthly. Indicators of high sexual risk behaviour, including having a history of STI, being HIV positive and having more than 10 sex partners, were positively associated with both being a consistent tester and returning to the STI clinic sooner. Men who were notified by a partner or who reported STI symptoms were also more likely to return to the STI clinic sooner, but were less likely to be consistent testers, identifying a group of event-driven testers. Conclusions The proportion of consistent 6-monthly testers among MSM visiting Dutch STI outpatient clinics was low. Testing behaviour was associated with sexual risk behaviour, but exact motives to test consistently remain unclear. Evidence-based testing guidelines are needed to achieve optimal reductions in STI transmission in the future.
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Affiliation(s)
- Maartje Visser
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, The Netherlands
| | - Janneke C M Heijne
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, The Netherlands
| | - Arjan A Hogewoning
- STI Outpatient Clinic, Public Health Service of Amsterdam, Amsterdam, The Netherlands
| | - Fleur van Aar
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, The Netherlands
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16
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Jansen K, Schmidt AJ, Drewes J, Bremer V, Marcus U. Increased incidence of syphilis in men who have sex with men and risk management strategies, Germany, 2015. ACTA ACUST UNITED AC 2016; 21:30382. [PMID: 27813472 PMCID: PMC5114722 DOI: 10.2807/1560-7917.es.2016.21.43.30382] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 07/15/2016] [Indexed: 01/05/2023]
Abstract
In Germany, the number of reported syphilis cases increased between 11% and 22% per year between 2010 and 2014. We analysed syphilis surveillance data and data of four behavioural surveys on men who have sex with men (MSM) in Germany (2003, 2007, 2010, 2013) to assess if this rise is ongoing and to find possible explanations for it. Syphilis notifications increased in 2015 by 19% to a total of 6,834. This was mainly due to increasing notifications in MSM of all age groups in larger German cities. Data from the behavioural surveys on MSM in Germany showed a simultaneous increase of selective condom use as HIV-status-bases risk management strategy and the number of syphilis cases. MSM diagnosed with HIV reported condomless anal intercourse with non-steady partners more frequent than MSM not diagnosed with HIV or untested for HIV, but the latter also reported higher frequencies of this behaviour in the more recent surveys. Transmission in HIV-positive MSM probably plays an important, but not exclusive role, for the syphilis dynamics in Germany. A risk adapted routine screening for sexually active MSM and potentially innovative approaches to increase early screening and treatment of syphilis such as internet counselling, home sampling, home testing and broadening venue-based (rapid) testing, should be critically evaluated to effectively reduce syphilis infections.
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Affiliation(s)
- Klaus Jansen
- Robert Koch Institute, Unit for HIV/AIDS, STI and blood-borne infections, Berlin, Germany
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17
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The Impact of a Social Marketing Campaign on HIV and Sexually Transmissible Infection Testing Among Men Who Have Sex With Men in Australia. Sex Transm Dis 2016; 43:49-56. [PMID: 26650997 DOI: 10.1097/olq.0000000000000380] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND In response to increasing HIV and other sexually transmissible infection (HIV/STI) notifications in Australia, a social marketing campaign Drama Downunder (DDU) was launched in 2008 to promote HIV/STI testing among men who have sex with men (MSM). We analyzed prospective data from (1) an online cohort of MSM and (2) clinic-level HIV/STI testing to evaluate the impact of DDU on HIV, syphilis, gonorrhea, and chlamydia testing. MATERIALS AND METHODS (1) Cohort participants who completed 3 surveys (2010-2014) contributed to a Poisson regression model examining predictors of recent HIV testing.(2) HIV, syphilis, gonorrhea, and chlamydia tests among MSM attending high caseload primary care clinics (2007-2013) were included in an interrupted time series analysis. RESULTS (1) Although campaign awareness was high among 242 MSM completing 726 prospective surveys, campaign recall was not associated with self-reported HIV testing. Reporting previous regular HIV testing (adjusted incidence rate ratio, 2.4; 95% confidence interval, 1.3-4.4) and more than 10 partners in the previous 6 months (adjusted incidence rate ratio, 1.2; 95% confidence interval, 1.1-1.4) was associated with recent HIV testing. (2) Analysis of 257,023 tests showed increasing monthly HIV, syphilis, gonorrhea, and chlamydia tests pre-DDU. Post-DDU, gonorrhea test rates increased significantly among HIV-negative MSM, with modest and nonsignificant increasing rates of HIV, syphilis, and chlamydia testing. Among HIV-positive MSM, no change in gonorrhea or chlamydia testing occurred and syphilis testing declined significantly. CONCLUSIONS Increasing HIV/STI testing trends among MSM occurred pre- and post-DDU, coinciding with other plausible drivers of testing. Modest changes in HIV testing post-DDU suggest that structural changes to improve testing access may need to occur alongside health promotion to increase testing frequency.
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18
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Grewal R, Allen VG, Gardner S, Moravan V, Tan DHS, Raboud J, Bayoumi AM, Kaul R, Mazzulli T, McGee F, Rourke SB, Burchell AN. Serosorting and recreational drug use are risk factors for diagnosis of genital infection with chlamydia and gonorrhoea among HIV-positive men who have sex with men: results from a clinical cohort in Ontario, Canada. Sex Transm Infect 2016; 93:71-75. [PMID: 27154185 PMCID: PMC5293859 DOI: 10.1136/sextrans-2015-052500] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Revised: 03/31/2016] [Accepted: 04/16/2016] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVES Rates of chlamydia and gonorrhoea have been rising in urban centres in Canada, particularly among HIV-positive men who have sex with men (MSM). Our objective was to identify behavioural risk factors for diagnosis with chlamydia and gonorrhoea in this population, with a focus on the HIV status of sexual partners. METHODS The OHTN Cohort Study follows people in HIV care across Ontario. We restricted the analysis to 1997 MSM who completed questionnaires in 2010-2013 at one of seven clinics that submit all chlamydia and gonorrhoea tests to the provincial public health laboratory; we obtained test results via record linkage. We estimated cumulative incidences using Kaplan-Meier methods and identified risk factors for diagnosis of a composite outcome (chlamydia or gonorrhoea infection) using Cox regression. RESULTS At follow-up, there were 74 new chlamydia/gonorrhoea diagnoses with a 12-month cumulative incidence of 1.7% (95% CI 1.1% to 2.2%). Risk factors for chlamydia/gonorrhoea diagnosis were: 5+ HIV-positive partners (HR=3.3, 95% CI 1.4 to 7.8; reference=none) and recreational drug use (HR=2.2, 95% CI 1.2 to 3.9). CONCLUSIONS Heightened risks with recreational drug use and multiple HIV-positive partners suggest that chlamydia/gonorrhoea may have achieved high prevalence in certain sexual networks among HIV-positive MSM. Interventions to promote safer sex and timely testing among MSM are needed.
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Affiliation(s)
- Ramandip Grewal
- Centre for Research on Inner City Health, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Vanessa G Allen
- Public Health Laboratories, Public Health Ontario, Toronto, Ontario, Canada
| | - Sandra Gardner
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada.,Baycrest Health Science, Toronto, Ontario, Canada
| | | | - Darrell H S Tan
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada.,Toronto General Research Institute, University Health Network, Toronto, Ontario, Canada.,Division of Infectious Diseases, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Janet Raboud
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada.,Toronto General Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Ahmed M Bayoumi
- Centre for Research on Inner City Health, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada.,Department of Medicine, University of Toronto, Toronto, Ontario, Canada.,Toronto General Research Institute, University Health Network, Toronto, Ontario, Canada.,Division of Infectious Diseases, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Rupert Kaul
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Tony Mazzulli
- Public Health Laboratories, Public Health Ontario, Toronto, Ontario, Canada.,Department of Microbiology, Mount Sinai Hospital/University Health Network, Toronto, Ontario, Canada
| | - Frank McGee
- AIDS Bureau, Ontario Ministry of Health and Long-Term Care, Toronto, Ontario, Canada
| | - Sean B Rourke
- Centre for Research on Inner City Health, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada.,Ontario HIV Treatment Network, Toronto, Ontario, Canada.,Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
| | - Ann N Burchell
- Centre for Research on Inner City Health, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada.,Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada.,Department of Family and Community Medicine, St. Michael's Hospital, Toronto, Ontario, Canada
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19
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McDaid LM, Aghaizu A, Frankis J, Riddell J, Nardone A, Mercey D, Johnson AM, Hart GJ, Flowers P. Frequency of HIV testing among gay and bisexual men in the UK: implications for HIV prevention. HIV Med 2016; 17:683-93. [PMID: 26991460 PMCID: PMC5026165 DOI: 10.1111/hiv.12373] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/25/2015] [Indexed: 11/29/2022]
Abstract
Objectives The aim of the study was to explore HIV testing frequency among UK men who have sex with men (MSM) in order to direct intervention development. Methods Cross‐sectional surveys were completed by 2409 MSM in Edinburgh, Glasgow and London in 2011 and a Scotland‐wide online survey was carried out in 2012/13. The frequency of HIV testing in the last 2 years was measured. Results Overall, 21.2% of respondents reported at least four HIV tests and 33.7% reported two or three tests in the last 2 years, so we estimate that 54.9% test annually. Men reporting at least four HIV tests were younger and less likely to be surveyed in London. They were more likely to report higher numbers of sexual and anal intercourse partners, but not “higher risk” unprotected anal intercourse (UAI) with at least two partners, casual partners and/or unknown/discordant status partners in the previous 12 months. Only 26.7% (238 of 893) of men reporting higher risk UAI reported at least four tests. Among all testers (n = 2009), 56.7% tested as part of a regular sexual health check and 35.5% tested following a risk event. Differences were observed between surveys, and those testing in response to a risk event were more likely to report higher risk UAI. Conclusions Guidelines recommend that all MSM test annually and those at “higher risk” test more frequently, but our findings suggest neither recommendation is being met. Additional efforts are required to increase testing frequency and harness the opportunities provided by biomedical HIV prevention. Regional, demographic and behavioural differences and variations in the risk profiles of testers suggest that it is unlikely that a “one size fits all” approach to increasing the frequency of testing will be successful.
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Affiliation(s)
- L M McDaid
- MRC/CSO Social and Public Health Sciences Unit, University of Glasgow, Glasgow, UK
| | | | - J Frankis
- Glasgow Caledonian University, Glasgow, UK
| | - J Riddell
- MRC/CSO Social and Public Health Sciences Unit, University of Glasgow, Glasgow, UK
| | | | - D Mercey
- University College London, London, UK
| | | | - G J Hart
- University College London, London, UK
| | - P Flowers
- Glasgow Caledonian University, Glasgow, UK
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20
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Burchell AN, Allen VG, Grewal R, MacPherson PA, Rachlis A, Walmsley S, Mishra S, Gardner SL, Raboud J, Cooper C, Gough K, Rourke SB, Rousseau R, Salit I, Tan DHS. Enhanced syphilis screening among HIV-positive men (ESSAHM): a study protocol for a clinic-randomized trial with stepped wedge design. Implement Sci 2016; 11:8. [PMID: 26772390 PMCID: PMC4715363 DOI: 10.1186/s13012-016-0371-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2015] [Accepted: 01/10/2016] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND The current syphilis epidemic among urban men who have sex with men (MSM) has serious implications for those co-infected with human immunodeficiency virus (HIV). Routine and frequent syphilis screening has the potential to ensure early detection and treatment, minimize disease burden, and help control the ongoing spread of syphilis and HIV. We aim to enhance syphilis screening among HIV-positive men by conducting a clinic-based intervention that incorporates opt-out syphilis testing into routine HIV laboratory evaluation for this population. Trial objectives are to determine the degree to which the intervention (1) increases the detection rate of untreated syphilis, (2) increases screening coverage, (3) increases screening frequency, and (4) reaches men at highest risk according to sexual behaviors. METHODS/DESIGN The trial is a pragmatic, stepped wedge cluster-randomized controlled trial that introduces the intervention stepwise across four urban HIV clinics in Ontario, Canada. The intervention includes standing orders for syphilis serological testing whenever a male in HIV care undergoes HIV viral load testing, which typically occurs every 3-6 months. The control condition is the maintenance of current, provider-initiated syphilis testing practice. Approximately 3100 HIV-positive men will be followed over 30 months. Test results will be obtained from the centralized provincial laboratory in Ontario and will be supplemented by a standardized clinical worksheet and medical chart review at the clinics. Detailed clinical, psychosocial, and behavioral data is available for a subset of men receiving HIV care who are also participants of the province-wide Ontario HIV Treatment Network Cohort Study. Process evaluation plans include audit and feedback of compliance of the participating centers to identify potential barriers to the introduction of this type of practice into routine care. Health economic components include evaluation of the impact and cost-effectiveness of the intervention. DISCUSSION This trial will be the first of its kind in Canada and will provide evidence regarding the feasibility, clinical effectiveness, and cost-effectiveness of a clinic-based intervention to improve syphilis screening among HIV-positive men. Involvement of knowledge users in all stages of trial design, conduct, and analysis will facilitate scale-up should the intervention be effective. TRIAL REGISTRATION ClinicalTrials.gov NCT02019043.
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Affiliation(s)
- Ann N Burchell
- Department of Family and Community Medicine, St. Michael's Hospital, 30 Bond Street, Toronto, Ontario, M5B 1W8, Canada.
- Centre for Research on Inner City Health, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Canada.
- Dalla Lana School of Public Health, University of Toronto, Toronto, Canada.
| | - Vanessa G Allen
- Public Health Ontario Laboratories, Public Health Ontario, Toronto, Canada.
| | - Ramandip Grewal
- Centre for Research on Inner City Health, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Canada.
| | - Paul A MacPherson
- Division of Infectious Diseases, The Ottawa Hospital, Ottawa, Canada.
- Ottawa Hospital Research Institute, Ottawa, Canada.
- Department of Medicine, University of Ottawa, Ottawa, Canada.
| | - Anita Rachlis
- Sunnybrook Health Sciences Centre, Toronto, Canada.
- Department of Medicine, University of Toronto, Toronto, Canada.
| | - Sharon Walmsley
- Department of Medicine, University of Toronto, Toronto, Canada.
- Toronto General Hospital, University Health Network, Toronto, Canada.
| | - Sharmistha Mishra
- Li Ka Shing Knowledge Institute, St. Michael's Hospital, 30 Bond Street, Toronto, Ontario, M5B 1W8, Canada.
- Division of Infectious Diseases, Department of Medicine, University of Toronto, Toronto, Canada.
| | - Sandra L Gardner
- Dalla Lana School of Public Health, University of Toronto, Toronto, Canada.
- Ontario HIV Treatment Network, Toronto, Canada.
| | - Janet Raboud
- Dalla Lana School of Public Health, University of Toronto, Toronto, Canada.
- Toronto General Research Institute, University Health Network, Toronto, Canada.
| | | | - Kevin Gough
- Department of Medicine, University of Toronto, Toronto, Canada.
- Division of Infectious Diseases, St. Michael's Hospital, Toronto, Canada.
| | - Sean B Rourke
- Centre for Research on Inner City Health, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Canada.
- Ontario HIV Treatment Network, Toronto, Canada.
- Department of Psychiatry, University of Toronto, Toronto, Canada.
| | - Rodney Rousseau
- Department of Immunology, University of Toronto, Toronto, Canada.
- Poz Prevention Working Group, Gay Men's Sexual Health Alliance, Toronto, Canada.
| | - Irving Salit
- Department of Medicine, University of Toronto, Toronto, Canada.
- Toronto General Hospital, University Health Network, Toronto, Canada.
| | - Darrell H S Tan
- Centre for Research on Inner City Health, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Canada.
- Department of Medicine, University of Toronto, Toronto, Canada.
- Toronto General Research Institute, University Health Network, Toronto, Canada.
- Division of Infectious Diseases, St. Michael's Hospital, Toronto, Canada.
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"Seek, Test, Treat" Lessons From Australia: A Study of HIV Testing Patterns From a Cohort of Men Who Have Sex With Men. J Acquir Immune Defic Syndr 2015; 69:460-5. [PMID: 25835608 DOI: 10.1097/qai.0000000000000613] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE HIV diagnoses are increasing in Australia, mostly among men who have sex with men (MSM). Similar to many countries, Australia's HIV prevention strategies emphasize a "seek, test, treat" approach including enhancing HIV testing frequency. We describe HIV testing among MSM and correlates of returning for testing within 12 months in the context of new HIV prevention paradigms. METHODS Testing and behavioral data (2007-2013) contributed by MSM aged ≥ 16 years were included. Total HIV tests by calendar year and repeat tests within 12 months were described, alongside negative binomial regression for trend. A 2-level mixed-effects logistic regression model examined correlates of testing within 12 months. Median (days) between HIV tests was compared between MSM diagnosed with HIV and persistently HIV-negative MSM. RESULTS The study included 46,060 tests from 17,904 MSM. There was an increase in annual tests (P < 0.01), repeat tests within 12 months (P < 0.01), and the proportion of tests within 12 months of an index test (P < 0.01), although only to 53.3% in 2013. Return rates were higher in MSM aged 16-29 years (adjusted odds ratio 1.30, 95% confidence interval: 1.1 to 1.5) and those reporting higher numbers of partners (adjusted odds ratio 3.5, 95% confidence interval: 3.0 to 4.0). Median time between tests among MSM diagnosed with HIV (233 days) was greater than for HIV-negative MSM (189 days) (P = 0.03). CONCLUSIONS Although testing has increased, testing frequency among many MSM remains suboptimal. To optimize "seek, test, treat"-based HIV prevention strategies, new approaches to increase testing uptake and early HIV detection among MSM are needed.
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22
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Abstract
PURPOSE OF REVIEW Benzathine Penicillin G has been used to treat syphilis for over 50 years; however, the precise regimen of penicillin for treatment of syphilis in HIV-positive individuals remains a hot topic of debate. Although international guidelines recommend the same treatment for syphilis, regardless of HIV status, there are inconsistencies in prescribing practices among clinicians. RECENT FINDINGS Two previous systematic reviews have found limited evidence for enhanced treatment of syphilis in the presence of HIV. However, a growing body of literature indicates that the rate of asymptomatic neurosyphilis may be higher in HIV, and that syphilis infection is associated with poorer long-term neurocognitive outcomes. A number of retrospective studies propose that serological response may be slower, or serological failure may be higher, among HIV-positive individuals, but these studies are limited by high loss to follow-up, high reinfection rates and a focus on serological rather than clinical response. Beyond penicillin, some evidence suggests equivalence of macrolides, cephalosporins and doxycycline, although macrolide resistance is an increasing concern. SUMMARY Until a prospective, randomized study is conducted, inconsistency with treatment will continue. We offer a pragmatic approach to recognizing patients who may require further investigation or neuropenetrative antibiotic treatment.
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23
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Burchell AN, Allen VG, Gardner SL, Moravan V, Tan DHS, Grewal R, Raboud J, Bayoumi AM, Kaul R, Mazzulli T, McGee F, Rourke SB. High incidence of diagnosis with syphilis co-infection among men who have sex with men in an HIV cohort in Ontario, Canada. BMC Infect Dis 2015; 15:356. [PMID: 26289937 PMCID: PMC4546079 DOI: 10.1186/s12879-015-1098-2] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Accepted: 08/07/2015] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND The re-emergence of syphilis among HIV-positive gay and other men who have sex with men (MSM) requires vigilance. We estimated incidence of and risk factors for first and subsequent syphilis diagnoses among MSM in HIV care in Ontario, Canada. METHODS We analyzed data from 2,280 MSM under follow-up from 2006 to 2010 in the Ontario HIV Treatment Network Cohort Study (OCS), a multi-site clinical cohort. We obtained syphilis serology results via record linkage with the provincial public health laboratory. Rates were calculated using Poisson regression. RESULTS First syphilis diagnoses occurred at a rate of 2.0 per 100 person-years (95 % CI 1.7, 2.4; 121 cases) whereas the re-diagnosis rate was 7.5 per 100 person-years (95 % CI 6.3, 8.8; 136 cases). We observed higher rates over time and among men who were aged <30 years, receiving care in the two largest urban centers, or had a previous syphilis diagnosis. Syphilis diagnosis was less common among Indigenous men, men with higher CD4 cell counts, and, for first diagnoses only, among men with less than high school education. CONCLUSIONS Compared to reported cases in the general male population, incidence of a new syphilis diagnosis was over 300 times greater among HIV-positive MSM but year-to-year changes reflected provincial trends. Re-diagnosis was common, suggesting treatment failure or re-infection. Novel syphilis control efforts are needed among HIV-positive MSM.
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Affiliation(s)
- Ann N Burchell
- Ontario HIV Treatment Network, Suite 600, 1300 Yonge Street, Toronto, ON, M4T 1X3, Canada. .,Dalla Lana School of Public Health, University of Toronto, Toronto, Canada. .,Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Canada. .,Department of Family and Community Medicine, St. Michael's Hospital, Toronto, Canada.
| | - Vanessa G Allen
- Public Health Laboratories, Public Health Ontario, Toronto, Canada.
| | - Sandra L Gardner
- Ontario HIV Treatment Network, Suite 600, 1300 Yonge Street, Toronto, ON, M4T 1X3, Canada. .,Dalla Lana School of Public Health, University of Toronto, Toronto, Canada.
| | - Veronika Moravan
- Ontario HIV Treatment Network, Suite 600, 1300 Yonge Street, Toronto, ON, M4T 1X3, Canada.
| | - Darrell H S Tan
- Department of Medicine, University of Toronto, Toronto, Canada. .,Toronto General Research Institute, University Health Network, Toronto, Canada. .,Division of Infectious Diseases, St. Michael's Hospital, Toronto, Canada.
| | - Ramandip Grewal
- Ontario HIV Treatment Network, Suite 600, 1300 Yonge Street, Toronto, ON, M4T 1X3, Canada.
| | - Janet Raboud
- Dalla Lana School of Public Health, University of Toronto, Toronto, Canada. .,Toronto General Research Institute, University Health Network, Toronto, Canada.
| | - Ahmed M Bayoumi
- Department of Medicine, University of Toronto, Toronto, Canada. .,Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Canada. .,Division of General Internal Medicine, St. Michael's Hospital, Toronto, Canada. .,Centre for Research on Inner City Health, Li KaShing Knowledge Institute, St. Michael's Hospital, Toronto, Canada.
| | - Rupert Kaul
- Department of Medicine, University of Toronto, Toronto, Canada.
| | - Tony Mazzulli
- Public Health Laboratories, Public Health Ontario, Toronto, Canada. .,Mount Sinai Hospital, Toronto, Canada.
| | - Frank McGee
- AIDS Bureau, Ontario Ministry of Health and Long Term Care, Toronto, Canada.
| | - Sean B Rourke
- Ontario HIV Treatment Network, Suite 600, 1300 Yonge Street, Toronto, ON, M4T 1X3, Canada. .,Department of Psychiatry, University of Toronto, Toronto, Canada. .,Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Canada.
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24
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Rönn M, Hughes G, Simms I, Ison C, Alexander S, White PJ, Ward H. Challenges Presented by Re-Emerging Sexually Transmitted Infections in HIV Positive Men who have Sex with Men: An Observational Study of Lymphogranuloma Venereum in the UK. JOURNAL OF AIDS & CLINICAL RESEARCH 2014; 5:1000329. [PMID: 26301124 PMCID: PMC4544700 DOI: 10.4172/2155-6113.1000329] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
BACKGROUND United Kingdom has reported the largest documented outbreak of lymphogranuloma venereum (LGV), a re-emerging sexually transmitted infection (STI) which is primarily seen in HIV-positive men who have sex with men (MSM). A diagnostic service was established in response to the outbreak linked to a voluntary LGV Enhanced Surveillance system. We examined the performance of this novel surveillance system to identify utility in tracking a re-emerging infection. METHODS We described laboratory data on samples and surveillance data from case reports for LGV from 2004-2010. We performed a cross-sectional analysis comparing clinical and behavioural characteristics of HIV-positive and HIV-negative/unknown LGV cases diagnosed in MSM using multivariable logistic regression models with generalised estimating equations to control for repeat infections. RESULTS LGV Surveillance data were available for 87% (1,370/1,581) of LGV cases (after de-duplication). There were 1,342 episodes in 1,281 MSM, most of whom were known to be HIV-positive (1,028/1,281, 80.2%,). HIV-positive men reported a shorter duration of symptoms (aOR 0.5; 95%CI 0.3, 0.8 for reporting more than a week compared to a week or less) in comparison to HIV-negative/unknown MSM, and were more likely to report unprotected receptive anal intercourse (aOR 2.7; 95% CI 1.3, 5.8). CONCLUSION The surveillance identified the population at greater risk of infection based on higher levels of risk behaviour in HIV-positive LGV cases. However, there was diagnostic bias towards HIV-positive LGV cases who presented with a shorter duration of symptoms when compared to HIV-negative/unknown LGV cases.
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Affiliation(s)
- Minttu Rönn
- Department of Infectious Disease Epidemiology, School of Public Health, Imperial College London, London, UK
| | - Gwenda Hughes
- STI Section at the Centre for Infectious Disease Surveillance and Control, Public Health England, London, UK
| | - Ian Simms
- STI Section at the Centre for Infectious Disease Surveillance and Control, Public Health England, London, UK
| | - Cathy Ison
- Sexually Transmitted Bacteria Reference Unit, Public Health England, London, UK
| | - Sarah Alexander
- Sexually Transmitted Bacteria Reference Unit, Public Health England, London, UK
| | - Peter J White
- MRC Centre for Outbreak Analysis and Modelling and NIHR Health Protection Research Unit in Modelling Methodology, Department of Infectious Disease Epidemiology, School of Public Health, Imperial College London, London, UK
- Modelling and Economics Unit, Centre for Infectious Disease Surveillance and Control, Public Health England, London, UK
| | - Helen Ward
- Department of Infectious Disease Epidemiology, School of Public Health, Imperial College London, London, UK
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