Behavioral interventions to reduce risk for sexual transmission of HIV among men who have sex with men

Fast-track interventions for HIV and AIDS epidemic control among key populations: A rapid review

BACKGROUND

Targeted interventions for key populations remain critical for realisation of epidemic control for human immunodeficiency virus (HIV) infection because of the causal relationship between HIV infection in the general population and among key population groups.

AIM

To consolidate evidence on the fast-track interventions towards achieving HIV epidemic control among key populations.

METHODS

A rapid scoping review was conducted using the methodological framework by Arksey and O' Malley. The Population, Intervention, Context and Outcome (PICO) framework was used to identify relevant studies using key words with Boolean operators in electronic data bases, namely CINHAL, Web of Science, Psych Info and Sabinet. Studies were extracted using a modified data extraction tool, and results were presented narratively.

RESULTS

A total of 19 articles were included in this review. Most articles were primary studies (n = 17), while another involved the review of existing literature and policies (n = 2) and routinely collected data (n = 1). Most studies were conducted in the United States of America (n = 6), while another were conducted in China, Kenya, Botswana, South Africa and Mozambique. All studies revealed findings on tested interventions to achieve HIV epidemic control among key populations.

CONCLUSION

Effective interventions for HIV epidemic control were stand-alone behavioural preventive interventions, stand-alone biomedical preventive strategies and combination prevention approaches. Furthermore, the findings suggest that effective activities to achieve HIV epidemic control among key populations should be centred around prevention.Contribution: The findings of this study have policy and practice implications for high HIV burden settings such as South Africa in terms of interventions to facilitate realisation of the Joint United Nations Programme on HIV/AIDS (UNAIDS) 95-95-95 targets, thereby contributing to HIV epidemic control.

HCV knowledge and attitudes among HIV-negative MSM and MSM living with HIV in China: results from a cross-sectional online survey

BACKGROUND

Men who have sex with men (MSM) are at high risk of hepatitis C virus (HCV) infection, especially for those living with human immunodeficiency virus (HIV). Learning about knowledge of and attitudes towards HCV is essential to inform health promotion interventions development. This is one of very limited studies to examine the level of knowledge and attitudes towards HCV and their determinants among HIV-negative MSM and MSM living with HIV in China.

METHODS

A cross-sectional survey was conducted across seven provinces in China from December 2021 to January 2022. All the MSM living with HIV were recruited offline, whereas the recruitment ratio for HIV-negative MSM was half online and half offline. Data on socio-demographic characteristics, sexual behaviors, knowledge about HCV, and attitude towards HCV from participants were collected through the online survey. Univariate and multivariable logistic regressions were used to determine the associated factors.

RESULTS

Only 39.3% (33/84) of HIV-negative men and 44.0% (37/84) of men living with HIV had a good level knowledge about HCV. Nearly one-third (32.1%, 27/84) of HIV-negative men and 41.7% (35/84) of men living with HIV reported a positive attitude towards HCV. For HIV-negative men, positive attitude towards HCV was associated with the multiple sexual partners (aOR: 5.8, 95%CI:1.9-18.1) and the use of recreational substances (aOR: 3.1, 95%CI: 1.0-9.4). For men living with HIV, knowledge about HCV was associated with disclosing sexual orientation to healthcare providers, family or friends (aOR: 7.0, 1.9-26.0), the multiple sexual partners (aOR: 0.2, 0.1-1.0), the use of recreational substances (aOR: 3.7, 95%CI: 1.1-13.1) and the HBV testing history (aOR: 7.3, 95%CI: 1.6-32.7); positive attitude towards HCV was associated with the use of recreational substances (aOR: 3.1, 95%CI: 1.1-9.0).

CONCLUSIONS

The majority of Chinese MSM showed an inadequate knowledge of and negative attitude towards HCV irrespective of HIV infection status. More tailored education campaigns and multicomponent interventions are required to be targeted on MSM, and more researches are also needed to inform how best to address the negative attitudes of this population towards HCV.

Condom-Related Stigma Scale among Men Who Have Sex with Men in China: Development and Psychometric Tests

Condom-related stigma is a frequently mentioned barrier to consistent condom use among men who have sex with men (MSM). Based on the concept and operational definition of condom-related stigma recently defined by our team, we developed the 20-item condom-related stigma scale (CRSS) and examined its psychometric properties among 433 MSM in China, following DeVellis's scale development guidelines. The content validity, convergent validity, empirical validity, factorial validity, scale score reliability, split-half reliability, and test-retest reliability for the CRSS were all assessed. The scale consists of four domains: perceived distrust, perceived potential HIV/STI risk, perceived embarrassment, and perceived violation of the traditional understanding of sexual intercourse. The CRSS has good validity (the scale-level content validity index was 0.99; the empirical validity was greater than 0.70) and high reliability (the Cronbach's alpha coefficient overall was 0.926; the split-half reliability overall was 0.795; the test-retest reliability overall was 0.950). This scale is recommended for assessing the level of condom-related stigma among Chinese MSM, which can serve as an evaluating indicator for safer-sex interventions to prevent HIV infection among the MSM population in a Chinese cultural context.

E-health interventions targeting STIs, sexual risk, substance use and mental health among men who have sex with men: four systematic reviews

Background

Human immunodeficiency virus/sexually transmitted infections, sexual risk, substance (alcohol and other legal and illegal drugs) use and mental ill health constitute a ‘syndemic’ of mutually reinforcing epidemics among men who have sex with men. Electronic health (e-health) interventions addressing these epidemics among men who have sex with men might have multiplicative effects. To our knowledge, no systematic review has examined the effectiveness of such interventions on these epidemics among men who have sex with men.

Objective

The objective was to synthesise evidence addressing the following: (1) What approaches and theories of change do existing e-health interventions employ to prevent human immunodeficiency virus/sexually transmitted infections, sexual risk, alcohol/drug use or mental ill health among men who have sex with men? (2) What factors influence implementation? (3) What are the effects of such interventions on the aforementioned epidemics? (4) Are such interventions cost-effective?

Data sources

A total of 24 information sources were searched initially (October–November 2018) [the following sources were searched: ProQuest Applied Social Sciences Index and Abstracts; Campbell Library; EBSCO Cumulative Index to Nursing and Allied Health Literature Plus, Wiley Online Library The Cochrane Library; Centre for Reviews and Dissemination databases (the Database of Abstracts of Reviews of Effects and the NHS Economic Evaluation Database); the Health Technology Assessment database; Evidence for Policy and Practice Information and Co-ordinating Centre (EPPI-Centre) database of health promotion research (Bibliomap); ProQuest Dissertations & Theses Global; OvidSP EconLit; OvidSP EMBASE; OvidSP Global Health; OvidSP Health Management Information Consortium; ProQuest International Bibliography of the Social Sciences; Ovid MEDLINE ALL; OvidSP PsycINFO; Web of Science Science Citation Index Expanded; Elsevier Scopus; OvidSP Social Policy & Practice; Web of Science Social Sciences Citation Index Expanded; ProQuest Sociological Abstracts; ClinicalTrials.gov; World Health Organization International Clinical Trials Registry Platform; EPPI-Centre Trials Register of Promoting Health Interventions; and the OpenGrey database], and an updated search of 19 of these was conducted in April 2020. Reference lists of included reports were searched and experts were contacted.

Review methods

Eligible reports presented theories of change and/or process, outcome and/or economic evaluations of e-health interventions offering ongoing support to men who have sex with men to prevent human immunodeficiency virus/sexually transmitted infections, sexual risk behaviour, alcohol/drug use and/or common mental illnesses. References were screened by title/abstract, then by full text. Data extraction and quality assessments used existing tools. Theory and process reports were synthesised using qualitative methods. Outcome and economic data were synthesised narratively; outcome data were meta-analysed.

Results

Original searches retrieved 27 eligible reports. Updated searches retrieved 10 eligible reports. Thirty-seven reports on 28 studies of 23 interventions were included: 33 on theories of change, 12 on process evaluations, 16 on outcome evaluations and one on an economic evaluation. Research question 1: five intervention types were identified – ‘online modular’, ‘computer games’ and ‘non-interactive’ time-limited/modular interventions, and open-ended interventions with ‘content organised by assessment’ and ‘general content’. Three broad types of intervention theories of change were identified, focusing on ‘cognitive/skills’, ‘self-monitoring’ and ‘cognitive therapy’. Research question 2: individual tailoring based on participant characteristics was particularly acceptable, and participants valued intervention content reflecting their experiences. Research question 3: little evidence was available of effects on human immunodeficiency virus or sexually transmitted infections. The analysis did not suggest that interventions were effective in reducing instances of human immunodeficiency virus or sexually transmitted infections. The overall meta-analysis for sexually transmitted infections reported a small non-significant increase in sexually transmitted infections in the intervention group, compared with the control group. Meta-analyses found a significant impact on sexual risk behaviour. The findings for drug use could not be meta-analysed because of study heterogeneity. Studies addressing this outcome did not present consistent evidence of effectiveness. Trials did not report effects on alcohol use or mental health. Research question 4: evidence on cost-effectiveness was limited.

Limitations

The quality of the eligible reports was variable and the economic synthesis was limited to one eligible study.

Conclusions

There is commonality in intervention theories of change and factors affecting receipt of e-health interventions. Evidence on effectiveness is limited.

Future work

Future trials should assess the impact of interventions on multiple syndemic factors, among them sexual risk, substance use and mental health; incorporate sufficient follow-up and sample sizes to detect the impact on human immunodeficiency virus/sexually transmitted infections; and incorporate rigorous process and economic evaluations.

Study registration

This study is registered as PROSPERO CRD42018110317.

Funding

This project was funded by the National Institute for Health Research (NIHR) Public Health Research programme and will be published in full in Public Health Research; Vol. 10, No. 4. See the NIHR Journals Library website for further project information.

Effectiveness of a group intervention to reduce sexual transmission risk behavior among MSM living with HIV: a non-randomized controlled pilot study

ABSTRACTWith an annual incidence of about 1.5 million new infections, HIV is an ongoing public health concern. Sexual transmission risk behavior (STRB) is a main driver of the HIV epidemic in most Western countries, particularly among specific populations such as men who have sex with men (MSM). This quasi-experimental pilot study examined the effectiveness of a ten-session group intervention, aiming to reduce STRB among a high-risk subpopulation of MSM living with HIV. Self-reported STRB, impulsivity, mental health symptoms, and functional impairment were compared between the intervention group (n = 12) and a control group (n = 16). At baseline, participants in the intervention group had higher levels of STRB, impulsivity, mental health problems, and functional impairment, compared to the control group. A significant time-by-group interaction effect revealed that after the intervention, STRB, impulsivity, and functional impairment reduced in the intervention group to levels comparable to the control group. These findings suggest that a targeted behavioral intervention might be an effective strategy to reduce persistent STRB and related factors in MSM living with HIV. Future studies should confirm these findings in larger samples, using randomized designs.

Increasing the HIV testing among MSM through HIV test result exchange mechanism: study protocol for a cluster randomized controlled trial

Background

HIV testing is an essential gateway to HIV prevention and treatment thus controlling the HIV epidemic. More innovative interventions are needed to increase HIV testing among men who have sex with men (MSM) since their testing rate is still low. We proposed an online HIV test results exchange mechanism whereby the one without a certified online HIV report will be asked to test HIV for exchanging HIV report with others. The exchange mechanism is developed as an extension to the existing online HIV testing service system. Through the extended system, MSM can obtain certified online HIV reports and exchange their reports with friends via WeChat. This study aims to assess effectiveness of the exchange mechanism to increase the HIV testing rate among MSM.

Methods

This study will use a cluster randomized controlled trial (RCT) design. Participants are recruited based on the unit of individual social network, the sender and the receivers of the HIV report. An individual social network is composed of one sender (ego) and one or more receivers (alters). In this study, MSM in an HIV testing clinic are recruited as potential egos and forwarded online reports to their WeChat friends voluntarily. Friends are invited to participate by report links and become alters. Ego and alters serve as a cluster and are randomized to the group using the certified online HIV report with exchange mechanism (intervention group) or without exchange mechanism (control group). Alters are the intervention targeting participants. The primary outcome is HIV testing rate. Other outcomes are sexual transmitted infections, sexual behaviors, HIV testing norms, stigma, risk perception and HIV report delivery. The outcomes will be assessed at baseline and follow-up questionnaires. Analysis will be according to intention to treat approach and using mixed-effect models with networks and individuals as random effects.

Discussion

This is the first study to evaluate the effectiveness of an HIV test result exchange mechanism to increase the HIV testing among MSM. This assessment of the intervention will also provide scientific evidence on other potential effects. Findings from this study will yield insights for sustainability driven by communities' intrinsic motivation.

Trail registration: ClinicalTrials.gov NCT03984136. Registered 12 June 2019.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12879-021-06484-y.

Impact of test-and-treat and risk reduction strategies on HCV transmission among MSM living with HIV in France: a modelling approach

OBJECTIVE

Since the early 2000s, there has been an epidemic of HCV occurring among men who have sex with men (MSM) living with HIV, mainly associated with high-risk sexual and drug-related behaviours. Early HCV diagnosis and treatment, and behavioural risk-reduction, may be effective to eliminate HCV among MSM living with HIV.

DESIGN

We developed a deterministic dynamic compartmental model to simulate the impact of test-and-treat and risk-reduction strategies on HCV epidemic (particularly on incidence and prevalence) among MSM living with HIV in France. We accounted for HIV and HCV cascades of care, HCV natural history and heterogeneity in HCV risk behaviours. The model was calibrated to primary HCV incidence observed between 2014 and 2017 among MSM living with HIV in care (ANRS CO4-French hospital database on HIV (FHDH)).

RESULTS

With current French practices (annual HCV screening and immediate treatment), total HCV incidence would fall by 70%, from 0.82/100 person-years in 2015 to 0.24/100 person-years in 2030. It would decrease to 0.19/100 person-years in 2030 with more frequent screening and to 0.19 (0.12)/100 person-years in 2030 with a 20% (50%) risk-reduction. When combining screening every 3 months with a 50% risk-reduction, HCV incidence would be 0.11/100 person-years in 2030, allowing to get close to the WHO target (90% reduction from 2015 to 2030). Similarly, HCV prevalence would decrease from 2.79% in 2015 to 0.48% in 2030 (vs 0.71% with current practices).

CONCLUSION

Combining test-and-treat and risk-reduction strategies could have a marked impact on the HCV epidemic, paving the way to HCV elimination among MSM living with HIV.

Minority Stress and Experience of Sexual Violence Among Men Who Have Sex With Men in Hanoi, Vietnam: Results From a Cross-Sectional Study

Men who have sex with men (MSM) are highly vulnerable to sexual violence, a known driver of HIV infection. Homosexuality stigma may be a unique risk factor for sexual violence among MSM. In this study, we examine the relationship between homosexuality stigma measures and sexual violence in the last 12 months using a minority stress framework. MSM were recruited using convenience and snowball sampling. Participants completed an interviewer-administered survey and provided blood samples for HIV testing. Bivariable associations were tested between self-reported experience of sexual violence in the last 12 months and homosexuality stigma measures using odds ratios (ORs) produced by Cochran-Mantel-Haenszel Statistics. A logistic regression model for each type of minority stress was built to conduct the multivariable analyses with independent covariates. Of 202 MSM, 29 (14.4%) participants reported experiencing sexual violence in the last 12 months. About one fourth of participants reported experiencing high enacted (55/202; 27.2%), perceived (52/202; 25.7%), and internalized (60/202; 29.7%) homosexuality stigma. In bivariable and multivariable analyses, enacted homosexuality stigma was the only variable consistently associated with experience of sexual violence in the last 12 months (aOR: 3.5; 95% confidence interval [CI]: [1.5, 8.4]). Sexual violence and homosexuality stigma are highly prevalent among MSM in Hanoi, Vietnam. MSM-targeted HIV prevention interventions in Vietnam should incorporate violence prevention and homosexuality stigma reduction activities. Longitudinal studies are needed to understand how homosexuality stigma influences sexual violence and other HIV risk behaviors among MSM.

Research Synthesis, HIV Prevention Response, and Public Health: CDC's HIV/AIDS Prevention Research Synthesis Project

OBJECTIVE

Research synthesis, through qualitative or quantitative systematic reviews, allows for integrating results of primary research to improve public health. We examined more than 2 decades of work in HIV prevention by the Centers for Disease Control and Prevention's (CDC's) HIV/AIDS Prevention Research Synthesis (PRS) Project. We describe the context and contributions of research synthesis, including systematic reviews and meta-analyses, through the experience of the PRS Project.

METHODS

We reviewed PRS Project publications and products and summarized PRS contributions from 1996 to July 2020 in 4 areas: synthesis of interventions and epidemiologic studies, synthesis methods, prevention programs, and prevention policy.

RESULTS

PRS Project publications summarized risk behaviors and effects of prevention interventions (eg, changing one's perception of risk, teaching condom negotiation skills) across populations at risk for HIV infection and intervention approaches (eg, one-on-one or group meetings) as the HIV/AIDS epidemic and science evolved. We used the PRS Project cumulative database and intervention efficacy reviews to contribute to prevention programs and policies through identification of evidence-based interventions and development of program guidance. Subject matter experts and scientific evidence informed PRS Project products and contributions, which were implemented through strategic programmatic partnerships.

CONCLUSIONS

The contributions of the PRS Project to HIV prevention and public health efforts in the United States can be credited to CDC's long-standing support of the project and its context within a federal prevention agency, where HIV programs and policies were developed and implemented. The effect of the PRS Project was likely facilitated by opportunities to directly influence program and policy because of connections with other research translation activities and program and policy decision making within CDC.

Health Risk Behaviors and Self-Esteem Among College Students: Systematic Review of Quantitative Studies

BACKGROUND

Due to their impact on premature mortality and long-term disabilities, a better understanding of health risk behavior (HRB) determinants among college students is crucial in order to build the most appropriate prevention tools. Although self-esteem appears to be a relevant candidate, a clear picture summarizing its multiple links with HRB is lacking to guide clinicians and researchers. This study aims to provide a systematic review of the associations between health risk behavior and self-esteem among college students.

METHODS

This search was performed in several databases on 02/02/17. Study eligibility criteria were original articles in peer-reviewed journals, in English; observational quantitative studies; among college students; and investigated the association between self-esteem and HRB. The PRISMA statements were complied with.

RESULTS

One hundred fifteen articles were included: 46 on substance use, 35 on sexual behavior, 11 on nutritional habits, 27 on physical activity, and 5 on other HRB. Most studies reported an association between higher self-esteem and healthier behavior. For alcohol consumption and number of sexual partners, both negative and positive associations have been reported. Directionality was investigated in a few studies suggesting potential bidirectional effects.

CONCLUSIONS

This review points out the need for consensus for the definition of self-esteem and HRB. There was high heterogeneity in (1) the measurement of self-esteem either in the concept measured (global vs. domain) or in the way to implement validated tools; and (2) the definition of HRB. Self-esteem seems to be a relevant target to intervene on HRB, especially alcohol abuse and physical activity.

TRIAL REGISTRATION

Registration number: PROSPERO (ID = CRD42017056599).

Sex, Drugs, and Impulse Regulation: A Perspective on Reducing Transmission Risk Behavior and Improving Mental Health Among MSM Living With HIV

Unprotected sexual contact continues to be a main cause of HIV transmission and poses certain key populations at increased risk for HIV infection. One of the populations at high risk are men who have sex with men. A subset of MSM engages in chemsex, whereby consumption of illicit drugs is used to facilitate or enhance sexual activity. This practice can have several negative consequences, such as sexually transmitted infections (including HIV) and mental health problems (including compulsive sexual behavior, addiction, and mood disorders). In this article, we provide our perspective on the current situation that medical professionals dealing with MSM living with HIV often feel empty-handed in how to deal with these behavioral and psychological issues. Close collaboration between somatic and mental health professionals is key to address treatment needs of people living with HIV, regarding the negative consequences of chemsex and their overall quality of life. In this article, we discuss possibilities for psychological treatment, including behavioral skills training to improve impulse control and reduce compulsive sexual behaviors among MSM living with HIV who persistently engage in sexual transmission risk behavior, based on our experience with implementing such an intervention. Important barriers and facilitators for further implementation of behavioral interventions will be discussed. Reduction of HIV transmission risk behavior is needed to achieve the WHO aim to end HIV as a public health threat by 2030. We propose that close collaboration between somatic and mental health professionals and implementation of behavioral interventions for risk populations are key to achieve this goal.

Peer education for HIV prevention among high-risk groups: a systematic review and meta-analysis

Background

Peer education has become a strategy for health promotion among high-risk groups for HIV infection worldwide. However, the extent to which peer education could have an impact on HIV prevention or the long-term effect of this impact is still unknown. This study thus quantifies the impact of peer education over time among high-risk HIV groups globally.

Method

Following the PRISMA guidelines, a systematic review and meta-analysis was used to assess the effects and duration of peer education. A thorough literature search of PubMed, Web of Science, Embase and Cochrane Library was performed, and studies about peer education on high-risk HIV groups were reviewed. Pooled effects were calculated and the sources of heterogeneity were explored using meta-regression and subgroup analysis.

Results

A total of 60 articles with 96,484 subjects were identified, and peer education was associated with 36% decreased rates of HIV infection among overall high risk groups (OR: 0.64; 95%CI: 0.47–0.87). Peer education can promote HIV testing (OR = 3.19; 95%CI:2.13,4.79) and condom use (OR = 2.66, 95% CI: 2.11–3.36) while reduce equipment sharing (OR = 0.50; 95%CI:0.33,0.75) and unprotected sex (OR = 0.82; 95%CI: 0.72–0.94). Time trend analysis revealed that peer education had a consistent effect on behavior change for over 24 months and the different follow-up times were a source of heterogeneity.

Conclusion

Our study shows that peer education is an effective tool with long-term impact for behavior change among high-risk HIV groups worldwide. Low and middle-income countries are encouraged to conduct large-scale peer education.

Perceptions of Strategies and Intervention Approaches for HIV Self-Management among Ugandan Adolescents: A Qualitative Study

The heightened vulnerability of adolescents to poor HIV care outcomes underscores the need for interventions that create and promote HIV self-management behavioral skills. Adolescents living with HIV (ALHIV) experience a complex array of physical, emotional, and social challenges that constrain their self-care, but the majority of existing psychosocial programs focus primarily on medication adherence. Understanding adolescents' self-care needs, challenges, and preferences is necessary for developing effective culturally relevant interventions. The involvement of caregivers and stakeholders is also critical to realizing positive self-care outcomes. This article presents the findings from focus group discussions with ALHIV, caregivers, and healthcare providers on self-care. The data were collected as part of formative research in the development of a self-management intervention for Ugandan ALHIV. Participants' discussions on self-care strategies and intervention approaches provide valuable insights to guide the development of interventions to promote positive HIV care outcomes among Ugandan ALHIV.

The prevalence, temporal trends, and geographical distribution of HIV-1 subtypes among men who have sex with men in China: A systematic review and meta-analysis

The aim of this meta-analysis was to provide a comprehensive overview of human immunodeficiency virus (HIV)-1 subtypes and to investigate temporal and geographical trends of the HIV-1 epidemic among men who have sex with men (MSM) in China. Chinese and English articles published between January 2007 and December 2017 were systematically searched. Pooled HIV-1 prevalence was calculated, and its stability was analysed using sensitivity analysis. Subgroups were based on study time period, sampling area and prevalence. Publication bias was measured using Funnel plot and Egger's test. A total of 68 independent studies that included HIV-1 molecular investigations were eligible for meta-analysis. Circulating recombinant form (CRF) 01_AE (57.36%, 95% confidence interval (CI) 53.76–60.92) was confirmed as the most prevalent HIV-1 subtype among MSM in China. Subgroup analysis for time period found that CRF01_AE steadily increased prior to 2012 but decreased during 2012–2016. Further whereas CRF07_BC increased over time, B/B′ decreased over time. CRF55_01B has increased in recent years, with higher pooled estimated rate in Guangdong (12.22%, 95% CI 10.34–13.17) and Fujian (8.65%, 95% CI 4.98–13.17) provinces. The distribution of HIV-1 subtypes among MSM in China has changed across different regions and periods. HIV-1 strains in MSM are becoming more complex. Long-term molecular monitoring in this population remains necessary for HIV-1 epidemic control and prevention.

"Now that PrEP is reducing the risk of transmission of HIV, why then do you still insist that we use condoms?" the condom quandary among PrEP users and health care providers in Kenya

Communication around condom use in the context of PrEP services presents a potential conundrum for patients and providers. Within the Partners Scale-Up Project, which supports integration of PrEP delivery in HIV care clinics, we interviewed 41 providers and 61 PrEP users and identified themes relating to condom messaging and use. Most providers counselled PrEP initiators to always use both PrEP and condoms, except when trying to conceive. However, others reported contexts and rationales for not emphasizing condom use. Providers reported that PrEP users were sometimes confused, even frustrated, with their insistence on using condoms in addition to PrEP. PrEP users generally regarded PrEP as a more feasible and desirable HIV prevention method than condoms, enabling increased sexual pleasure and conception, and reducing the conflict and stigma associated with condom use. Innovative approaches to condom counselling in PrEP programs are needed.

Growth Trajectories of Peer Norms, Self-efficacy and Condom Use Behavior Among Sexually Active Chinese Men Who Have Sex with Men: Latent Class Analysis and Growth Mixture Modeling

Data from a randomized controlled trial in 2015 were used to estimate the growth trajectories of peer norms, self-efficacy, and condom use behavior, and to identify associated sociodemographic and behavioral factors among a sample of 804 Chinese men who have sex with men (MSM). Latent class analysis and growth mixture modeling were conducted using Mplus. Two growth trajectories were estimated for each outcome variable with good model fit. The growth trajectories of peer norms were related to age (β = - 0.066, p < 0.05). The growth trajectories of self-efficacy were related to age (β = 0.057, p < 0.01) and using a condom during first sexual encounter with another man (β = 0.777, p < 0.001). The growth trajectories of condom use behavior were related to income (β = 0.366, p < 0.01) and having casual male partners (β = - 1.016, p < 0.001). Predictors for the growth factors within each latent class were also estimated. For subsets of MSM who are older, richer, used a condom during their first sexual encounter with another man, and do not have a casual male partner, condom videos may not have sufficient efficacy and other interventions may be necessary.

Using Text Messaging to Improve Access to Prenatal Health Information in Urban African American and Afro-Caribbean Immigrant Pregnant Women: Mixed Methods Analysis of Text4baby Usage

Background

The Text4baby (T4B) mobile health (mHealth) program is acclaimed to provide pregnant women with greater access to prenatal health care, resources, and information. However, little is known about whether urban African American and Afro-Caribbean immigrant pregnant women in the United States are receptive users of innovative health communication methods or of the cultural and systematic barriers that inhibit their behavioral intent to use T4B.

Objective

This study aimed to understand the lived experiences of urban African American and Afro-Caribbean immigrant pregnant women with accessing quality prenatal health care and health information; to assess usage of mHealth for seeking prenatal health information; and to measure changes in participants’ knowledge, perceptions, and behavioral intent to use the T4B mHealth educational intervention.

Methods

An exploratory sequential mixed methods study was conducted among pregnant women and clinical professionals for a phenomenological exploration with focus groups, key informants, interviews, and observations. Qualitative themes were aligned with behavioral and information technology communications theoretical constructs to develop a survey instrument used. repeated-measures pre- and post-test design to evaluate changes in participants’ knowledge, attitudes, and beliefs, of mHealth and T4B after a minimum of 4 weeks’ exposure to the text message–based intervention. Triangulation and mixing of both qualitative and quantitative data occurred primarily during the survey development and also during final analysis.

Results

A total of 9 women participated in phase 1, and 49 patients signed up for T4B and completed a 31-item survey at baseline and again during follow-up. Three themes were identified: (1) patient-provider engagement, (2) social support, and (3) acculturation. With time as a barrier to quality care, inadequate patient-provider engagement left participants feeling indifferent about the prenatal care and information they received in the clinical setting. Of 49 survey participants, 63% (31/49) strongly agreed that T4B would provide them with extra support during their pregnancy. On a Likert scale of 1 to 5, participants’ perception of the usefulness of T4B ranked at 4.26, and their perception of the compatibility and relative advantage of using T4B ranked at 4.41 and 4.15, respectively. At follow-up, there was a 14% increase in participants reporting their intent to use T4B and a 28% increase from pretest and posttest in pregnant women strongly agreeing to speak more with their doctor about the information learned through T4B.

Conclusions

Urban African American and Afro-Caribbean immigrant pregnant women in Brooklyn endure a number of social and ecological determinants like low health literacy, income, and language that serve as barriers to accessing quality prenatal health care and information, which negatively impacts prenatal health behaviors and outcomes. Our study indicates a number of systematic, political, and other microsystem-level factors that perpetuate health inequities in our study population.

Effectiveness of interventions for changing HIV related risk behaviours among key populations in low-income setting: A Meta-Analysis, 2001-2016

The aim of this review was to conduct a meta-analysis to assess the effectiveness of behavioural interventions to reduce HIV-related risk behaviours among key populations: people who inject drugs, female sex workers, men who have sex with men and transgender in Nepal over the last two decades. Using four electronic databases, we performed a systematic search of the literature on HIV interventions implemented in Nepal and published from January 2001 to December 2016. In addition, grey literature was also scrutinised for potential articles. The search focussed specifically on behavioural interventions (peer education and HIV testing services) targeted for key populations. Random-effects models were used to calculate the pooled odds ratio for dichotomous outcomes (condom use in last sex or unsafe injection practices), pooled HIV prevalence and subgroup analyses by age groups and epidemic zones in Nepal. Forty-three studies with 15,642 participants were included (people who inject drugs: 7105; men who have sex with men and transgender: 2637; female sex workers: 5900). Pooled prevalence showed a higher occurrence of HIV among people who inject drugs (12%) followed by men who have sex with men/transgender (5%) and female sex workers (2%) respectively. There was a significant increase in the odds of condom use among female sex workers, men who have sex with men and transgender who received peer education interventions in both informal and formal setting compared to those who did not. Similarly, the odds of condom use among female sex workers, men who have sex with men and transgender improved significantly among those who received HIV counselling and testing services as compared to those who did not use such services. Subgroup analyses also verified the effectiveness of these interventions for both young and adult key populations and across all three epidemic zones. However, none of the included interventions were found to be effective for reducing unsafe injection practices among people who inject drugs. HIV prevention interventions in Nepal have effectively reduced risky behaviours among female sex workers, men who have sex with men and transgender over the last two decades but not among people who inject drugs. This calls for continued implementation of existing efforts as well as for new interventions adapted to the needs of people who inject drugs.

HIV prevention cascade theory and its relation to social dimensions of health: a case for Nigeria

Background

Nigeria has the second largest HIV epidemic in the world and one of the highest rates of new infection in sub-Saharan Africa. Within the last three decades, majority of HIV programs in Nigeria were treatment strategies with few prevention approaches. The persistence of HIV prevalence despite the treatment blueprint has led to a concerted call to HIV Prevention Cascade (HPC) theory which ensures continuous sophisticated interrelationship that stretches beyond the biomedical interventions of treatment. To our knowledge, there is no previous review on HPC theory in Nigerian context.

Objectives

The aim of this review was to explore and outline the HIV/AIDS prevention cascade theory in relation to the achievement of the global 90-90-90 target set by the United Nations Programme on HIV and AIDS and suggest possible avenues to maximize on strengths and weaknesses of HPC in Nigeria.

Methods

In this mini-review, the authors utilized standardized search measures in the review of published articles in credible domains across the HPC in PubMed, Research gate, Google Scholar, Mendeley Reference Manager and Cochrane Library from January 1980 to December 2018. Referenced sections of the articles identified were used to hand-search additional references not retrieved by the initial search engines. The authors performed an evaluation of selected studies on three cascade theories: epidemiological, behavioral and social science with an integration of the supply, demand and adherence sides.

Results

We included nine review articles reporting three different cascade theories. Only one included study applied the cascade theories exclusively in Nigerian context. We could only conduct narrative synthesis.

Conclusion

There is scarceness of currently published evidence on HPC in Nigerian context. HPC allows for a paradigm shift and sequential process of events to eliminate the epidemic of HIV using HIV prevention perspectives in Nigerian settings. Since data are sparse, more research is needed on HPC theory.

Feasibility, Acceptability, and Process Indicators for Guy2Guy, an mHealth HIV Prevention Program for Sexual Minority Adolescent Boys

PURPOSE

Guy2Guy is one of the first mHealth HIV prevention programs for sexual minority boys aged 14-18 years, evaluated nationally. Here, we examine the program's feasibility and acceptability and explore participants' feedback about program content and components intended to invigorate program engagement.

METHODS

Guy2Guy was tested in a randomized controlled trial of 302 youth assigned to either the intervention or an attention-matched control group. At 3-month follow-up, participants completed a survey that included questions about feasibility and acceptability. Focus groups were conducted with a subset of intervention participants (n = 45) to further understand their program experience.

RESULTS

The protocol and program appeared to be feasible: 94% completed the 3-month follow-up survey. The intervention also appeared to be acceptable: 93% of intervention participants said they somewhat or strongly agreed that they liked the program. Although ∼20% boys agreed that the program sent too many messages, only 10% said they stopped reading the messages by the end. Focus group participants were largely enthusiastic about program content and generally appreciated receiving information and skills-building messages that talked about HIV risk reduction. Some indicated a desire for more content that addressed condom negotiation. Program engagement components, particularly the weekly "level up" quiz, also were generally well received.

CONCLUSIONS

Sexual minority boys are willing to engage in Guy2Guy, an intensive, multiweek sexual health intervention via text messaging, and most would recommend the program to their friends.

Sexual Orientation, Religious Coping, and Drug Use in a Sample of HIV-Infected African-American Men Living in the Southern USA

Religiosity and spirituality are associated with reduced drug use in the general population, but it is unclear whether this relationship generalizes to sexual minorities. This study investigated the relationship between religious coping, drug use, and sexual orientation in a sample of HIV-infected African-American men (40 heterosexuals; 64 sexual minorities). Most participants (76%) reported being "moderately" or "very" religious. We found no main effect of religious coping or sexual orientation on frequency of drug use. However, there was an interaction between positive religious coping and sexual orientation. Among heterosexuals, positive religious coping was inversely associated with frequency of drug use. However, this relationship was not significant among sexual minorities. Findings suggest HIV-infected African-American sexual minorities living in the South may need additional coping resources to decrease vulnerability to drug use.

Online HIV prevention intervention on condomless sex among men who have sex with men: a web-based randomized controlled trial

Background

Given the widespread use of the Internet among men who have sex with men (MSM) and high risk of Internet-facilitated sexual behaviors, Internet-based interventions to reduce sexual risk are urgently needed.

Methods

We recruited 1,100 participants from online and randomly assigned to two groups. One group received online HIV intervention services. Online HIV intervention was developed through mix-method formative research, measures included scenarios experiencing intervention and HIV information dissemination. Self-reported condomless anal sex with a male in the past three months was measured to evaluate the intervention effect.

Result

Of the 1,100 participants, the majority were aged between 21 and 30 years old (62%), had a college degree or higher (80%), were single (88%), and self-identified as homosexual (78%). The estimated risk difference of condomless sex with a male in the past three months between groups was 9.3% (95% confidence interval (CI): 1.1, 17.5%). Using multiple imputations intention-to-treat, the estimated risk difference was 8.9% (95%CI: 1.2, 16.6%). Modification effects were found between intervention and characteristics including: educational attainment (p = 0.012), marital status (p = 0.005) and awareness of AIDS-related knowledge (p = 0.010).

Conclusion

Internet appears to be a promising approach to disseminate HIV prevention amongst MSM. Interactive online intervention appeals to MSM and poses a great potential for reducing HIV risky behavior.

Trial registration

ChiCTR1800014260 (retrospectively registered 2 Jan, 2018).

Electronic supplementary material

The online version of this article (10.1186/s12879-019-4251-5) contains supplementary material, which is available to authorized users.

Implementation and impact of a technology-based HIV risk-reduction intervention among Thai men who have sex with men using "Vialogues": a randomized controlled trial

We conducted a randomized control trial to evaluate the impact of a novel technology-based intervention on HIV risks and condom use behaviors among Thai men who have sex with men (MSM). Between April 2016 and August 2017, participants aged 18 years and above, and having engaged in unprotected sex in past six months were randomly assigned to control and intervention arm, and received HIV testing at baseline, month 6 and 12. Intervention arm participants engaged in 12-monthly HIV/STI prevention educational sessions delivered via Vialogues.com. Of 76 MSM enrolled, 37 were randomized to intervention and 39 to control arm. Median age was 28 (IQR 24-32) years. Thirty-three (89.2%) intervention arm participants completed all 12-monthly Vialogues sessions. At month 12, intervention arm had higher retention rate (p = 0.029) and higher median percentage of condom use for anal intercourse (p = 0.023) versus control arm. Over the 12-month period, intervention arm reported significant reduction in self-perceived HIV risk (p = 0.001), popper usage (p = 0.002), median number of sexual partners (p = 0.003), and increased median condom use percentage (p = 0.006). Our study highlights that "Vialogues" intervention significantly reduced number of sexual partners and condomless anal intercourse rates among Thai MSM, and has positive implications for reducing epidemic among key populations.

Moderated Mediation of Perceived Intoxication and Sexual Arousal on Determinants of Sexual Risk Behavior in Men Who Have Sex with Men

Behavioral interventions remain the preferred strategy for reducing HIV-related risk behavior among men who have sex with men (MSM), one of the populations most affected by HIV. To improve intervention efforts, research is needed to identify cognitive-motivational factors that may play a role in sexual risk behaviors among MSM. This study sought to replicate and extend previous work from a heterosexual population that identified a serial mediation effect of perceived intoxication and subjective sexual arousal in the relationship between alcohol consumption and determinants of sexual risk in a population of MSM. Exploratory moderated mediation analyses tested subjective sexual arousal as a moderator of the indirect effect of alcohol consumption on determinants of sexual risk via perceived intoxication. Participants (N = 117 MSM, ages 21-50) were randomly assigned to one of six experimental conditions based on two manipulations: beverage condition (alcohol, placebo, or control) and sexual arousal (low or high). Dependent measures were likelihood to engage in risky sex and condom negotiation skills. Results did not support the serial mediation effect but showed some support for the moderated mediation model in the prediction of behavioral skills. Implications for alcohol and arousal myopia theories of risky behavior and HIV prevention efforts are discussed.

Consistent Condom Use Among Men Who Have Sex With Men in Lomé and Kara, Togo

High transmission probability of HIV during condomless anal sex puts men who have sex with men (MSM), transgender, and nonbinary individuals at increased risk of infection. This analysis aims to examine the socioeconomic, biological, and behavioral factors that are associated with consistent condom use (CCU) during insertive/receptive anal sex among MSM in the last month in the cities of Lomé and Kara, Togo. A total of 683 MSM ≥18 years of age were surveyed using respondent-driven sampling (RDS) for a cross-sectional survey in Lomé (n = 354; 51.8%) and Kara (n = 329; 48.2%). Participants completed a structured questionnaire and were tested for HIV and syphilis. Statistical analyses included RDS-weighted proportions, bootstrapped confidence intervals (CIs), and logistic regression models. When compared with Lomé, MSM in Kara had lower odds of CCU [adjusted odds ratio (aOR) = 0.29, 95% CI = 0.19-0.44]. Other factors associated with lower CCU were having an income of 2,000 Communaute Financiere Africaine (CFA)-12,000 CFA (aOR = 0.53, 95% CI = 0.36-0.77) or above 12,000 CFA (aOR = 0.34, 95% CI = 0.20-0.57), transgender women (aOR = 0.47, 95% CI = 0.25-0.92), and intersex gender (aOR = 0.42, 95% CI = 0.24-0.73), and ever being forced to have sex (aOR = 0.42, 95% CI = 0.21-0.82). Factors associated with CCU were identified in this study including older age (aOR = 1.49, 95% CI = 1.04-2.14) and having easy access to condoms (aOR = 2.70, 95% CI = 1.23-5.94) and very easy access to condoms (aOR = 2.73, 95% CI = 1.20-6.16). Reported condom use in this study was low, and several factors associated with CCU were identified including older age and access to condoms. This study highlights multiple barriers to preventive services experienced by MSM in Togo and therefore leveraging strategies to address these barriers may improve prevention of HIV and syphilis.

A Preliminary Randomized Controlled Trial of Game Plan, A Web Application to Help Men Who Have Sex with Men Reduce Their HIV Risk and Alcohol Use

Alcohol use is a key risk factor for HIV infection among men who have sex with men (MSM). Past studies show that brief motivational interventions (BMI) can increase the use of prevention methods (e.g., condoms), reduce alcohol use, and can be adapted for web-based delivery. However, few studies have explored these interventions' effects in MSM. Forty high-risk, heavy drinking MSM who sought rapid HIV testing were randomly assigned to receive either (1) standard post-test counseling (SPC) alone, or (2) SPC plus Game Plan (GP), a tablet tablet-based BMI for alcohol use and HIV risk. Over three months of follow-up, GP participants reported 24% fewer heavy drinking days, 17% fewer alcohol problems, and 50% fewer new anal sex partners than controls. GP participants also reported fewer high-risk condomless anal sex events than controls, but these differences were not significant. These initial results suggest that web-based BMIs may be promising tools to help MSM reduce health risk behaviors.

Hepatitis C risk perceptions and attitudes towards reinfection among HIV-diagnosed gay and bisexual men in Melbourne, Australia

INTRODUCTION

Gay and bisexual men (GBM) are at increased risk of hepatitis C/HIV co-infection. In Australia, the availability of subsidized direct-acting antiviral treatment for hepatitis C has rendered eliminating co-infection possible. High reinfection rates in subgroups with continued exposure may compromise elimination efforts. To inform the development of hepatitis C risk reduction support in GBM, we explored reinfection risk perceptions and attitudes among GBM living with HIV recently cured from hepatitis C.

METHODS

Between April and August 2017, 15 GBM living with diagnosed HIV were recruited from high caseload HIV primary care services in Melbourne following successful hepatitis C treatment. In-depth interviews were conducted exploring understandings of hepatitis C risks, experiences of co-infection and attitudes towards reinfection. Constructivist grounded theory guided data aggregation.

RESULTS

Participants' understandings of their hepatitis C infection and reinfection trajectories were captured in three categories. Hepatitis C and HIV disease dichotomies: Hepatitis C diagnosis was a shock to most participants and contrasted with feelings of inevitability associated with HIV seroconversion. While HIV was normalized, hepatitis C was experienced as highly stigmatizing. Despite injecting drug use, interviewees did not identify with populations typically at risk of hepatitis C. Risk environments and avoiding reinfection: Interviewees identified their social and sexual networks as risk-perpetuating environments where drug use was ubiquitous and higher risk sex was common. Avoiding these risk environments to avoid reinfection resulted in community disengagement, leaving many feeling socially isolated. Hepatitis C care as a catalyst for change: Engagement in hepatitis C care contributed to a better understanding of hepatitis C risks. Interviewees were committed to applying their improved competencies around transmission risk reduction to avoid reinfection. Interviewees also considered hepatitis C care as a catalyst to reduce their drug use.

CONCLUSIONS

Hepatitis C/HIV co-infection among GBM cannot be understood in isolation from co-occurring drug use and sex, nor as separate from their HIV infection. Hepatitis C prevention must address subcultural heterogeneity and the intersectionality between multiple stigmatized social identities. Hepatitis C care presents an opportunity to provide support beyond cure. Peer support networks could mitigate social capital loss following a commitment to behaviour change and reduce hepatitis C reinfection risks.

Resilience, condom use self-efficacy, internalized homophobia, and condomless anal sex among black men who have sex with men, New York City

Background

Black men who have sex with men, who account for less than 1% of the U.S. population, account for approximately 25% of new HIV infections annually. Condomless anal sex contributes to HIV infection among black men who have sex with men. The capacity to recover quickly from difficulties (resilience) may be protective against condomless anal sex, but has been understudied among black men who have sex with men. Psychosocial factors related to resilience, i.e., condom use self-efficacy and internalized homophobia, may also affect condomless anal sex. We assessed the association between resilience, condom use self-efficacy, internalized homophobia and condomless anal sex among black men who have sex with men.

Methods

Data are from a 2010–2011 study examining condomless anal sex (past 60 days) among black men who have sex with men in New York City. Validated scales assessed resilience (theoretical range = 0–100), condom use self-efficacy (theoretical range = 27–135), and internalized homophobia (theoretical range = 9–36). We described continuous variables using median and interquartile range (IQR). Univariable and multivariable Poisson regression models assuming a robust variance estimator were used to compute unadjusted and adjusted prevalence ratios, respectively, and their corresponding 95% confidence intervals (CI). Adjusted prevalence ratios (aPR) examined the association of resilience, condom use self-efficacy, and internalized homophobia with condomless anal sex, while controlling for potential confounders (e.g., having >1 sex partner).

Results

The median resilience score within our sample (N = 228) was 75 (IQR = 66–83). Many black men who have sex with men reported condomless anal sex (55.7%) and >1 sex partner (58.8%). Decreased condomless anal sex was associated with increased levels of condom use self-efficacy (aPR: 0.94 per 10-point increase in condom use self-efficacy score; CI: 0.90–0.97; p-value: 0.001). Condomless anal sex was not associated with resilience or internalized homophobia.

Conclusions

Within this sample of black men who have sex with men, condomless anal sex was prevalent. Greater resilience was not protective against condomless anal sex. Interventions that support condom use are warranted for black men who have sex with men.

Evaluation of a training aimed at building capacity for outreaching to men who have sex with men and transgender women in Indonesia

Implementers of outreach program in Indonesia often provide formal training for their outreach workers (OWs) only at the startup. We believe continuous training can be provided by experienced OWs at any time if an appropriate training package is available. Using a one-group pre-test-post-test study design; we developed, implemented and evaluated an OW-informed training program aimed at increasing OWs' knowledge and skills for outreaching to men who have sex with men and transgender women. We analyzed longitudinal data from 75 OWs from 7 Indonesian cities using one-way within-subjects ANOVA to examine the effects of the training program on participants' knowledge and perceived skills over time Average overall knowledge among participants increased from pre-test to immediate post-test (P < 0.001) and from pre-test to 2-month post-test (P < 0.001), especially in basic human immunodeficiency virus and sexual transmitted infections; condoms and lubricants; sexual and reproductive health and rights; sexual orientation and gender identity and expression; and stages of behavior change. Average overall perceived skills increased significantly from pre-test to 2-month post-test (P = 0.018), especially in creating innovative outreach approaches; building effective teamwork; and coordinating with healthcare providers. This training package increased knowledge and perceived skills among OWs. Thus, if consistently applied, it could help maintaining quality of the outreach program.

The Role of Gay-Related Stigma in HIV-Risk Behavior Among Sexual Minority Men in Europe

Sexual orientation stigma stems from discriminatory social contexts and may ultimately impact the behavioral health of stigmatized individuals through stress-related pathways. Sexual minority stigma is of particular concern in Europe given the diversity of social contexts on the continent and sexual minority men's rapidly increasing risk of HIV infection, especially in Central and Eastern Europe, potentially rooted in stigma. This study assesses whether stigma in the ubiquitous social contexts surrounding sexual minority men (e.g., family, workplace, government) may place them at higher risk for HIV contraction across six countries. We utilized a large cross-sectional survey sample of HIV-negative sexual minority men (N = 2087; mean age = 31.6, SD = 9.7) from six European countries to test whether those who reported sexual orientation stigma also engaged in more HIV risk-related behaviors, including condomless sex with casual partners (in the absence of PrEP) and substance use before and during sex. Regression analyses were performed in Mplus. We found that a one standard deviation increase in reported sexual orientation stigma was significantly associated with the following during the last sexual encounter: a 19% increase in odds of sex under the influence of alcohol, 27% increase in odds of sex under the influence of cannabis, 49% increase in odds of sex under the influence of illicit drugs, an 11% increase in odds of condomless sex with casual partners in the past 6 months, and a 26% increase in odds of knowing where to receive an HIV test. Sexual minority men who reported perceiving greater sexual orientation-related stigma within their ubiquitous social contexts were significantly more likely to report sexual risk and alcohol and drug use during their last sexual encounter, yet reported more knowledge of preventive services. Contextual stigma might serve as a precursor to behavioral risks of HIV infection, generating maladaptive stress responses capable of being modified through individually-focused interventions. Structural interventions are also needed to ultimately reduce stigma at its source.

Understanding and Addressing Hepatitis C Virus Reinfection Among Men Who Have Sex with Men

Hepatitis C virus reinfection rates among men who have sex with men are high. Factors associated with infection point to varied sexual and drug-related risks that could be targeted for interventions to prevent infection/reinfection. Modeling indicates that tackling increasing incidence and high reinfection rates requires high levels of hepatitis C virus treatment combined with behavioral interventions. Enhanced testing strategies and prompt retreating of reinfection may be required to promptly diagnosed reinfections. Behavioral interventions studies addressing reinfection are required. Other interventions include traditional harm reduction interventions, adapted behavioral interventions, and interventions to prevent harms related to ChemSex and other risk factors.

The impact and cost-effectiveness of combined HIV prevention scenarios among transgender women sex-workers in Lima, Peru: a mathematical modelling study

Background

HIV incidence remains high among transgender women in Lima, Peru, most of whom report sex work. On the basis of a stakeholder analysis and health system capacity assessment, we designed a mathematical model to guide HIV programmatic planning among transgender women sex workers (TWSW) in Lima.

Methods

Using a deterministic compartmental model, we modelled HIV transmission among TWSW, their stable partners, and their clients to estimate the impact and cost-effectiveness of combinations of interventions compared with the standard of care on reducing HIV incidence over a 10-year period. We simulated HIV transmission accounting for differences in sexual positioning in anal intercourse and condom use by partner type and fitted the model to HIV surveillance data using Latin hypercube sampling. The interventions we considered were 15% relative increase in condom use with clients and 10% relative increase with stable partners; increase in antiretroviral treatment (ART) coverage at CD4 count lower than 500 cells per mm³ and greater than or equal to 500 cells per mm³; and 15% pre-exposure prophylaxis (PrEP) coverage using generic and branded formulations. We considered a basic scenario accounting for current limitations in the Peruvian HIV services and an enhanced scenario assuming achievement of the UNAIDS 90–90-90 targets and general improvements in HIV services. The 50 best fits according to log-likelihood were used to give the minimum and maximum values of intervention effect for each combination. We used disability-adjusted life-years (DALYs) to measure the negative health outcomes associated with HIV infection that could be averted through the interventions investigated and calculated incremental cost-effectiveness ratios to compare their cost-effectiveness.

Findings

Under the basic scenario, combining the four interventions of increasing condom use with clients and stable partners, extending ART to people with CD4 count greater than or equal to 500 cells per mm³, and 15% PrEP coverage with generic drugs would avert 47% (range 27–51) of new infections in TWSW, their clients, and their stable partners over 10 years, with an incremental cost-effectiveness ratio of US$509 per DALY averted. Under the enhanced scenario, this strategy would avert 61% (44–64) of new infections among this population with an incremental cost-effectiveness ratio of $1003 per DALY averted. Under both scenarios, implementation of this strategy approaches or surpasses the 50% incidence reduction goal and would represent a cost-effective use of country resources if generic PrEP drugs are used. The total cost of implementing this strategy under the enhanced scenario would be approximately $1·2 million per year over 10 years, corresponding to 10% of the current Global Fund’s yearly contribution in Peru.

Interpretation

Investments in HIV services among TWSW in Lima would be cost-effective, even under stringent cost-effectiveness criteria when accounting for setting-specific resource constraints. Notable improvements in HIV testing rates, innovative interventions to increase condom use, and reduced PrEP costs will be key to achieving the 50% incidence reduction goal. Modelling studies incorporating stakeholders’ perspectives and health system assessments can bring added value to HIV policy making.

Condom use intentions mediate the relationships between psychosocial constructs and HIV sexual risk behavior in young Black men who have sex with men

HIV prevention interventions that reduce sexual risk behaviors among young Black men who have sex with men (YBMSM), the most severely affected population in the United States, are critical for reducing disparities in HIV infection. However, there are few theory-based sexual risk reduction interventions designed specifically for YBMSM. This study tested the applicability of the Integrated Behavioral Model (IBM), which theorizes that behavioral intentions mediate the relationship between psychosocial constructs and health behavior on condomless anal intercourse (CAI) among YBMSM. To test key constructs of the IBM, analyses were conducted with baseline data from the HealthMpowerment (HMP) randomized controlled trial. Logistic regression was used to examine the relationships between condom use self-efficacy, norms, attitudes, intentions, and environmental constraints, and CAI. Mediation analysis was conducted to determine if condom use intentions mediated the relationship between psychosocial constructs (i.e., condom use self-efficacy, norms, and attitudes) and CAI. Overall 55.7% reported one or more acts of CAI with a male partner in the past 3 months. Those who reported CAI in the 3 months prior to the baseline survey reported lower self-efficacy for condom use, lower condom use norms, more negative attitudes toward condom use, and lower condom use intentions at baseline than those who reported no CAI. In mediation analysis, the relationships between CAI and self-efficacy for condom use (estimated indirect effect = -0.004 (SE = 0.002)), condom use norms (-0.002 (SE = 0.001)) and attitudes toward condom use (-0.005 (SE = 0.002)) were mediated by condom use intentions. This study applied the IBM to sexual risk behavior among a sample of YBMSM. Results indicate that the relationships between condom use self-efficacy, norms, and attitudes, and CAI were mediated by condom use intentions. Future theory-informed interventions should focus on increasing self-efficacy for condom use, condom use norms, attitudes toward condom use, and condom use intentions to reduce CAI among YBMSM.

The Effect of a Text Messaging Based HIV Prevention Program on Sexual Minority Male Youths: A National Evaluation of Information, Motivation and Behavioral Skills in a Randomized Controlled Trial of Guy2Guy

There is a paucity of literature documenting how the constructs of the Information-Motivation-Behavioral Skills (IMB) model are affected by exposure to technology-based HIV prevention programs. Guy2Guy, based on the IMB model, is the first comprehensive HIV prevention program delivered via text messaging and tested nationally among sexual minority adolescent males. Between June and November 2014, 302 14-18 year old gay, bisexual, and/or queer cisgender males were recruited across the US on Facebook and enrolled in a randomized controlled trial testing Guy2Guy versus an attention-matched control program. Among sexually inexperienced youth, those in the intervention were more than three times as likely to be in the "High motivation" group at follow-up as control youth (aOR = 3.13; P value = 0.04). The intervention effect was not significant when examined separately for those who were sexually active. HIV information did not significantly vary by experimental arm at 3 months post-intervention end, nor did behavioral skills for condom use or abstinence vary. The increase in motivation to engage in HIV preventive behavior for adolescent males with no prior sexual experience is promising, highlighting the need to tailor HIV prevention according to past sexual experience. The behavioral skills that were measured may not have reflected those most emphasized in the content (e.g., how to use lubrication to reduce risk and increase pleasure), which may explain the lack of detected intervention impact.

CLINICAL TRIAL REGISTRATION

ClinicalTrials.gov ID# NCT02113956.

Effect of opioid-substitution therapy and mental health counseling on HIV risk among hepatitis C-infected individuals

Background

Understanding differences in HIV incidence among people living with hepatitis C virus (HCV) can help inform strategies to prevent HIV infection. We estimated the time to HIV diagnosis among HCV-positive individuals and evaluated factors that could affect HIV-infection risk in this population.

Patients and methods

The British Columbia Hepatitis Testers Cohort includes all BC residents (~1.5 million: about a third of all residents) tested for HCV and HIV from 1990 to 2013 and is linked to administrative health care and mortality data. All HCV-positive and HIV-negative individuals were followed to measure time to HIV acquisition (positive test) and identify factors associated with HIV acquisition. Adjusted HRs (aHRs) were estimated using Cox proportional-hazard regression.

Results

Of 36,077 HCV-positive individuals, 2,169 (6%) acquired HIV over 266,883 years of follow-up (overall incidence of 8.1 per 1,000 person years). Overall median (IQR) time to HIV infection was 3.87 (6.06) years. In Cox regression, injection-drug use (aHR 1.47, 95% CI 1.33–1.63), HBV infection (aHR 1.34, 95% CI 1.16–1.55), and being a man who has sex with men (aHR 2.78, 95% CI 2.14–3.61) were associated with higher risk of HIV infection. Opioid-substitution therapy (OST) (aHR 0.59, 95% CI 0.52–0.67) and mental health counseling (aHR 0.48, 95% CI 0.43–0.53) were associated with lower risk of HIV infection.

Conclusion

Injection-drug use, HBV coinfection, and being a man who has sex with men were associated with increased HIV risk and engagement in OST and mental health counseling were associated with reduced HIV risk among HCV-positive individuals. Improving access to OST and mental health services could prevent transmission of HIV and other blood-borne infections, especially in settings where access is limited.

Reducing HIV Vulnerability Through a Multilevel Life Skills Intervention for Adolescent Men (The iREACH Project): Protocol for a Randomized Controlled Trial

Background

Few HIV interventions have demonstrated efficacy in reducing HIV risk among adolescent men who have sex with men (AMSM), and fewer still have recognized the unique needs of AMSM based on race/ethnicity or geographical setting. Recognizing that youths’ HIV vulnerability is intricately tied to their development and social context, delivering life skills training during adolescence might delay the onset or reduce the consequences of risk factors for HIV acquisition and equip AMSM with the skills to navigate HIV prevention. This protocol describes the development and testing of iREACH, an online multilevel life skills intervention for AMSM.

Objective

This randomized controlled trial (RCT) aims to test the efficacy of an online-delivered life skills intervention, iREACH, on cognitive and behavioral HIV-related outcomes for AMSM.

Methods

iREACH is a prospective RCT of approximately 600 cisgender adolescent males aged 13 to 18 years who report same-sex attractions. The intervention will be tested with a racial/ethnically diverse sample (≥50% racial/ethnic minority) of AMSM living in four regions in the United States: (1) Chicago to Detroit, (2) Washington, DC to Atlanta, (3) San Francisco to San Diego, and (4) Memphis to New Orleans.

Results

This project is currently recruiting participants. Recruitment began in March 2018.

Conclusions

iREACH represents a significant innovation in the development and testing of a tailored life skills-focused intervention for AMSM, and has the potential to fill a significant gap in HIV prevention intervention programming and research for AMSM.

Registered Report Identifier

RR1-10.2196/10174

Longitudinal Findings on Changes in and the Link Between HIV-Related Communication, Risky Sexual Behavior, and Relationship Status in Men Who Have Sex With Men Living With HIV

BACKGROUND

Reducing the risk of HIV transmission among men who have sex with men (MSM) is a national health priority. This study longitudinally examined changes in and the link between HIV-related communication, unprotected anal intercourse (UAI), and relationship status among MSM.

METHODS

Data were obtained from 337 MSM living with HIV who participated in a randomized controlled study. Approximately equal percentages of men were randomized to either the disclosure intervention group or the attention control case management group. Repeated measures were collected at 5 time points for 12 months and included health-protective sexual communication (HPSC), HIV disclosure, insertive and receptive UAI, and relationship status. Data were analyzed using mixed-effects models.

RESULTS

Independent of the treatment condition, HPSC and HIV disclosure increased over time; insertive UAI showed a curvilinear pattern but no significant decrease over time. Relationship status was related to HIV-related communication and UAI. Greater HPSC was related to less insertive and receptive UAI; disclosure was positively related to insertive UAI.

CONCLUSIONS

Based on the findings, prevention programs should continue to focus on improving HIV-related communication among MSM and consider relationship status in prevention messages. Intervention studies are needed to continue to identify and test factors that help reduce risky sexual behaviors.

Participation in HIV Behavioral Research: Unanticipated Benefits and Burdens

HIV behavioral research has provided an invaluable knowledge base for effective approaches to behavioral challenges along the HIV care cascade. Little attention has been paid to tracking unanticipated effects of research participation, whether negative or positive. We used qualitative methods to elicit impressions of unanticipated effects of participation in behavioral research. An instrument was developed and piloted to assess positive (emotional gains, practical gains, HIV prevention knowledge and skills gains) and negative (emotional stress, discomfort with research) unanticipated effects. Participants (N = 25) from five projects, including men who have sex with men, adults who use substances, and youth, reported multiple positive unanticipated effects (sexual and drug risk reduction, goal setting, improvements in self-esteem and mood, relationship gains, health care behavior gains, knowledge and introspection gains) and rare unanticipated negative effects. Developing a systematic tool of unanticipated positive and negative effects of participation in behavioral research is a crucial next step.

HIV-Infected Young Men Demonstrate Appropriate Risk Perceptions and Beliefs about Safer Sexual Behaviors after Human Papillomavirus Vaccination

The aim of this study was to identify risk perceptions after human papillomavirus (HPV) vaccination among HIV-infected young men who have sex with men. On average, participants appropriately perceived themselves to be at lower than neutral risk for HPV (mean subscale score 4.2/10), at higher than neutral risk for other sexually transmitted infections (7.0/10), and that safer sexual behaviors were still important (8.5/10). Higher perceived risk of HPV was associated with African-American race (p = .03); higher perceived risk of other sexually transmitted infections with White race (p = .01) and higher knowledge about HPV (p = .001); and higher perceived need for safer sexual behaviors with consistent condom use (p = .02). The study provides reassuring data that HIV-infected young men who have sex with men generally have appropriate risk perceptions and believe that safer sexual behaviors after vaccination are still important. These findings mirror the results of studies in HIV-infected young women and HIV-uninfected adolescents.

Eliminating HIV/HCV co-infection in gay and bisexual men: is it achievable through scaling up treatment?

INTRODUCTION

Broad availability of direct-acting antiviral therapy for hepatitis C virus (HCV) raises the possibility that HCV prevalence and incidence can be reduced through scaling-up treatment, leading to the elimination of HCV. High rates of linkage to HIV care among HIV-infected gay and bisexual men may facilitate high uptake of HCV treatment, possibly making HCV elimination more achievable in this group. Areas covered: This review covers HCV elimination in HIV-infected gay and bisexual men, including epidemiology, spontaneous clearance and long term sequelae in the absence of direct-acting antiviral therapy; direct-acting antiviral therapy uptake and effectiveness in this group; HCV reinfection following successful treatment; and areas for further research. Expert commentary: Early data from the direct-acting antiviral era suggest that treatment uptake is increasing among HIV infected GBM, and SVR rates are very promising. However, in order to sustain current treatment rates, additional interventions at the behavioral, physician, and structural levels may be required to increase HCV diagnosis, including prompt detection of HCV reinfection. Timely consideration of these issues is required to maximize the population-level impact of HCV direct-acting antiviral therapy. Potential HCV transmissions from HIV-uninfected GBM, across international borders, and from those who are not GBM also warrant consideration.

Is hepatitis C virus elimination possible among people living with HIV and what will it take to achieve it?

INTRODUCTION

The World Health Organization targets for hepatitis C virus (HCV) elimination include a 90% reduction in new infections by 2030. Our objective is to review the modelling evidence and cost data surrounding feasibility of HCV elimination among people living with HIV (PLWH), and identify likely components for elimination. We also discuss the real-world experience of HCV direct acting antiviral (DAA) scale-up and elimination efforts in the Netherlands.

METHODS

We review modelling evidence of what intervention scale-up is required to achieve WHO HCV elimination targets among HIV-infected (HIV+) people who inject drugs (PWID) and men who have sex with men (MSM), review cost-effectiveness of HCV therapy among PLWH and discuss economic implications of elimination. We additionally use the real-world experience of DAA scale-up in the Netherlands to illustrate the promise and potential challenges of HCV elimination strategies in MSM. Finally, we summarize key components of the HCV elimination response among PWLH.

RESULTS AND DISCUSSION

Modelling indicates HCV elimination among HIV+ MSM and PWID is potentially achievable but requires combination treatment and either harm reduction or behavioural risk reductions. Preliminary modelling indicates elimination among HIV+ PWID will require elimination efforts among PWID more broadly. Treatment for PLWH and high-risk populations (PWID and MSM) is cost-effective in high-income countries, but costs of DAAs remain a barrier to scale-up worldwide despite the potential low production price ($50 per 12 week course). In the Netherlands, universal DAA availability led to rapid uptake among HIV+ MSM in 2015/16, and a 50% reduction in acute HCV incidence among HIV+ MSM from 2014 to 2016 was observed. In addition to HCV treatment, elimination among PLWH globally also likely requires regular HCV testing, development of low-cost accurate HCV diagnostics, reduced costs of DAA therapy, broad treatment access without restrictions, close monitoring for HCV reinfection and retreatment, and harm reduction and/or behavioural interventions.

CONCLUSIONS

Achieving WHO HCV Elimination targets is potentially achievable among HIV-infected populations. Among HIV+ PWID, it likely requires HCV treatment scale-up combined with harm reduction for both HIV+ and HIV- populations. Among HIV+ MSM, elimination likely requires both HCV treatment and behaviour risk reduction among the HIV+ MSM population, the latter of which to date has not been observed. Lower HCV diagnostic and treatment costs will be key to ensuring scale-up of HCV testing and treatment without restriction, enabling elimination.

The clinical effectiveness of individual behaviour change interventions to reduce risky sexual behaviour after a negative human immunodeficiency virus test in men who have sex with men: systematic and realist reviews and intervention development

BACKGROUND

Men who have sex with men (MSM) experience significant inequalities in health and well-being. They are the group in the UK at the highest risk of acquiring a human immunodeficiency virus (HIV) infection. Guidance relating to both HIV infection prevention, in general, and individual-level behaviour change interventions, in particular, is very limited.

OBJECTIVES

To conduct an evidence synthesis of the clinical effectiveness of behaviour change interventions to reduce risky sexual behaviour among MSM after a negative HIV infection test. To identify effective components within interventions in reducing HIV risk-related behaviours and develop a candidate intervention. To host expert events addressing the implementation and optimisation of a candidate intervention.

DATA SOURCES

All major electronic databases (British Education Index, BioMed Central, Cumulative Index to Nursing and Allied Health Literature, EMBASE, Educational Resource Index and Abstracts, Health and Medical Complete, MEDLINE, PsycARTICLES, PsycINFO, PubMed and Social Science Citation Index) were searched between January 2000 and December 2014.

REVIEW METHODS

A systematic review of the clinical effectiveness of individual behaviour change interventions was conducted. Interventions were examined using the behaviour change technique (BCT) taxonomy, theory coding assessment, mode of delivery and proximity to HIV infection testing. Data were summarised in narrative review and, when appropriate, meta-analysis was carried out. Supplemental analyses for the development of the candidate intervention focused on post hoc realist review method, the assessment of the sequential delivery and content of intervention components, and the social and historical context of primary studies. Expert panels reviewed the candidate intervention for issues of implementation and optimisation.

RESULTS

Overall, trials included in this review (n = 10) demonstrated that individual-level behaviour change interventions are effective in reducing key HIV infection risk-related behaviours. However, there was considerable clinical and methodological heterogeneity among the trials. Exploratory meta-analysis showed a statistically significant reduction in behaviours associated with high risk of HIV transmission (risk ratio 0.75, 95% confidence interval 0.62 to 0.91). Additional stratified analyses suggested that effectiveness may be enhanced through face-to-face contact immediately after testing, and that theory-based content and BCTs drawn from 'goals and planning' and 'identity' groups are important. All evidence collated in the review was synthesised to develop a candidate intervention. Experts highlighted overall acceptability of the intervention and outlined key ways that the candidate intervention could be optimised to enhance UK implementation.

LIMITATIONS

There was a limited number of primary studies. All were from outside the UK and were subject to considerable clinical, methodological and statistical heterogeneity. The findings of the meta-analysis must therefore be treated with caution. The lack of detailed intervention manuals limited the assessment of intervention content, delivery and fidelity.

CONCLUSIONS

Evidence regarding the effectiveness of behaviour change interventions suggests that they are effective in changing behaviour associated with HIV transmission. Exploratory stratified meta-analyses suggested that interventions should be delivered face to face and immediately after testing. There are uncertainties around the generalisability of these findings to the UK setting. However, UK experts found the intervention acceptable and provided ways of optimising the candidate intervention.

FUTURE WORK

There is a need for well-designed, UK-based trials of individual behaviour change interventions that clearly articulate intervention content and demonstrate intervention fidelity.

STUDY REGISTRATION

The study is registered as PROSPERO CRD42014009500.

FUNDING

The National Institute for Health Research Health Technology Assessment programme.

Persistent high-risk behavior and escalating HIV, syphilis and hepatitis B incidences among men who have sex with men living in Bangui, Central African Republic

Introduction

HIV in sub-Saharan Africa remains a great concern in men who have sex with men (MSM). Intervention on MSM is a key strategy to control the burden of HIV among this population. Herein we assessed the effect of 2 years of HIV testing and counseling on risk-tacking and HIV and STI incidences among MSM living in Bangui in the Central African Republic.

Methods

The incidences of HIV, syphilis and hepatitis B and the sexual behavior characteristics were assessed at inclusion and after 2 years of follow up in the prospective MSM cohort.

Results

99 MSM were included and followed up during 2 years. The mean age of study MSM was 24 years (range, 14-39); among those, the majority was single (84.8%) and unemployed (33.3%) or students (23.9%). The majority (up to 80%) were living in only 4 (out of 10) neighboring district of Bangui. Insertive anal intercourse showed significant decrease from 54% at inclusion to 46% after 2 years of follow up (P < 0.001). In contrast, we observed slight increase in receptive anal intercourse (60% versus 66%) and oral sex (70% versus 74%), but the difference did not reach statistical significance. Finally, the prevalences of HIV, syphilis and hepatitis B increased significantly from 29% to 41%, 12% to 21% and 14% to 23%, respectively.

Conclusion

These observations indicate that medical care and counseling on MSM does not provide significant changes in risk-taking, whereas the incidences of HIV, syphilis and hepatitis B remained high. Innovative interventions should be conceived for the MSM population living in Bangui.

Assessment of HIV disclosure and sexual behavior among Black men who have sex with men following a randomized controlled intervention

Disclosure is important in human immunodeficiency virus (HIV) transmission risk reduction. This randomized controlled intervention assessed changes in and predictors of disclosure and risky sexual behavior among Black men who have sex with men (BMSM) living with HIV in the U.S. BMSM were randomly assigned to either the disclosure intervention or attention control case management group. Predictors of three disclosure types (behavior, beliefs, intentions) and condomless anal intercourse (CAI) included disclosure consequences (rewards and costs), disclosure readiness, and safer sex readiness. Mixed-effect results showed no differences between the groups in any of the outcomes; although disclosure behavior increased over time. Relationships were found between readiness to change and CAI; disclosure consequences and different disclosure types; and disclosure behavior and receptive CAI. When working with BMSM living with HIV, practitioners and prevention specialists should consider the importance of disclosure pertaining to receptive CAI and factors that support overall disclosure and safer sex.

The Utility of a Syndemic Framework in Understanding Chronic Disease Management Among HIV-Infected and Type 2 Diabetic Men Who Have Sex with Men

Syndemic theory posits that epidemics of multiple physical and psychosocial problems co-occur among disadvantaged groups due to adverse social conditions. Although sexual minority populations are often stigmatized and vulnerable to multiple health problems, the syndemic perspective has been underutilized in understanding chronic disease. To assess the potential utility of this perspective in understanding the management of co-occurring HIV and Type 2 diabetes, we used linear regression to examine glycemic control (A1c) among men who have sex with men (MSM) with both HIV and Type 2 diabetes (n = 88). Bivariable linear regression explored potential syndemic correlates of inadequate glycemic control. Compared to those with adequate glycemic control (A1c ≤ 7.5 %), more men with inadequate glycemic control (A1c > 7.5 %) had hypertension (70 vs. 46 %, p = 0.034), high triglycerides (93 vs. 61 %, p = 0.002), depression (67 vs. 39 %, p = 0.018), current substance abuse (15 vs. 2 %, p = 0.014), and detectable levels of HIV (i.e., viral load ≥75 copies per ml blood; 30 vs. 10 %, p = 0.019). In multivariable regression controlling for age, the factors that were independently associated with higher A1c were high triglycerides, substance use, and detectable HIV viral load, suggesting that chronic disease management among MSM is complex and challenging for patients and providers. Findings also suggest that syndemic theory can be a clarifying lens for understanding chronic disease management among sexual minority stigmatized populations. Interventions targeting single conditions may be inadequate when multiple conditions co-occur; thus, research using a syndemic framework may be helpful in identifying intervention strategies that target multiple co-occurring conditions.

Acute Alcohol Consumption Directly Increases HIV Transmission Risk: A Randomized Controlled Experiment

BACKGROUND

Alcohol consumption has frequently been purported as a driver of condomless sex and HIV transmission, but to date, experimental evidence for the causal risk-taking impact of alcohol among HIV-positive populations is lacking. The present experiment sought to determine whether acute alcohol consumption has a direct causal impact on condomless sex intentions among HIV-positive men-who-have-sex-with-men (MSM), and to assess whether alcohol's impact differs between MSM who are HIV-positive versus HIV-negative.

METHODS

In a randomized controlled alcohol administration experiment, HIV-positive and HIV-negative MSM were brought into a specialized barroom laboratory and randomly assigned to beverage consumption condition: alcohol (target blood alcohol concentration = 0.080%), placebo alcohol (target blood alcohol concentration = 0.000%), or water (control). Participants then underwent a video-based sexual arousal manipulation (sexually aroused/nonaroused) and indicated their intentions to engage in condom-protected and condomless sexual acts in a standardized paradigm. The primary outcome entailed intentions to engage in condomless receptive and condomless insertive anal sex.

RESULTS

A total of 282 MSM (141 HIV-positive; 141 HIV-negative) completed experimental procedures. MSM who received alcohol reported significantly stronger intentions to engage in condomless sex than those who received placebo alcohol or water (F(1,274) = 9.43, P = 0.002). The impact of alcohol did not differ between HIV-positive and HIV-negative MSM (F(1,274) = 1.86, P = 0.174).

CONCLUSIONS

The present investigation entailed the first risk-focused alcohol administration experiment to involve an HIV-positive sample, and results demonstrated that consuming alcohol had an independent, causal impact on intentions to engage in sexual behaviors that can result in HIV transmission. Findings strongly suggest that alcohol-focused initiatives should be incorporated into HIV prevention efforts.

HCV Cure and Reinfection Among People With HIV/HCV Coinfection and People Who Inject Drugs

PURPOSE OF REVIEW

Highly effective, well-tolerated interferon-free direct-acting antivirals (DAA) have revolutionised hepatitis C virus (HCV) therapeutics, with the opportunity for broad treatment scale-up among marginalised or "high-risk" populations, including people who inject drugs (PWID) and people with HIV/HCV coinfection.

RECENT FINDINGS

Concern that HCV reinfection may compromise HCV treatment outcomes is sometimes cited as a reason for not offering treatment to current and former PWID. However, the incidence of reinfection following interferon-based treatment for chronic HCV is low among PWID. Reinfection rates in HIV-positive men-who-have-sex-with-men (MSM) are varied, with high incidence reported in some cohorts. Mathematical modelling suggests that substantial reductions in HCV incidence and prevalence could be achieved with targeted DAA therapy among those at the highest risk of ongoing transmission. This review will summarise the recent literature on DAA efficacy in PWID and people with HIV/HCV coinfection, discuss the individual- and population-level impact of DAA treatment scale-up and reinfection, and highlight ongoing and future research questions in expanding HCV care and treatment to those populations at high risk of ongoing HCV transmission.

Design of a syndemic based intervention to facilitate care for men who have sex with men with high risk behaviour: the syn.bas.in randomized controlled trial

Background

Men who have sex with men (MSM) constitute a risk group for sexual transmitted infections (STIs), including HIV. Despite counselling interventions, risk behaviour remains high. Syndemic theory holds that psychosocial problems often co-occur, interact and mutually reinforce each other, thereby increasing high risk behaviours and co-occurring diseases. Therefore, if co-occurring psychosocial problems were assessed and treated simultaneously, this might decrease high risk behaviour and disease.

Method

An open label randomized controlled trial will be conducted among 150 MSM with high risk behaviour recruited from the STI clinic of Amsterdam. Inclusion criteria are: HIV negative MSM with two STI and/or PEP treatment in the last 24 months, or HIV positive MSM with one STI in the last 24 months. All participants get questionnaires on the following syndemic domains: ADHD, depression, anxiety disorder, alexithymia and sex- and drug addiction. Participants in the control group receive standard care: STI screenings every three months and motivational interviewing based counselling. Participants in the experimental group receive standard care plus feedback based on the results of the questionnaires. All participants can be referred to co-located mental health or addiction services.

The primary outcome is help seeking behaviour for mental health problems and/or drug use problems. The secondary outcomes are STI incidence and changes in sexual risk behaviour (i.e. condom use, number of anal sex partners, drug use during sex).

Discussion

This study will provide information on syndemic domains among MSM who show high risk behaviour and on the effect of screening and referral on help seeking behaviour and health (behaviour) outcomes.

Trial registration

Trial Registration at clinicaltrail.gov, identifier NCT02859935.

Prevalence of condomless anal intercourse and recent HIV testing and their associated factors among men who have sex with men in Hangzhou, China: A respondent-driven sampling survey

Men who have sex with men (MSM) are a large high-risk population for HIV infection in recent years in China. A cross-sectional survey was conducted in Hangzhou, China, to determine rates of condomless anal intercourse (CAI), recent HIV testing (in the recent year) and associated factors using respondent-driven sampling. Questionnaires using face-to-face interviews were employed to collect data on sexual risk behaviors and HIV testing. Five hundred eleven MSM were recruited, of which 459 (89.8%) had anal intercourse in the past 6 months. Of these 459 participants, 457 (99.6%) answered whether they had taken an HIV test in the recent year, so only their data were analyzed. Weighted data were analyzed using bivariate and multivariate logistic regression analysis. The CAI rate with male partners in the past 6 months was 43.7% (95% confidence interval [CI], 34.0-51.5%), while the rate of condomless vaginal intercourse (CVI) was 21.6% (95% CI, 15.6-32.3%). The prevalence of recent HIV testing was 56.8% (95% CI, 48.7-66.5%), while the prevalence of HIV and syphilis were 8.8% and 6.5%, respectively. Multivariate analysis indicated that CAI was associated with earlier homosexual debut, suicidal inclinations, childhood sexual abuse, HIV testing in the recent year, and lower estimate of HIV prevalence. Recent HIV testing was associated with homosexual debut age, engaging in CAI with male partners in the past 6 months, having oral sex in the past 6 months, self-perceived higher likelihood of HIV infection, knowing about antiretroviral therapy for HIV/AIDS, receiving AIDS/sexually transmitted infection (STI) interventions in the past year, and syphilis infection. Given high prevalence of HIV and syphilis, high levels of CAI and CVI, and low HIV testing rate, the results indicated high risk of HIV infection and transmission among MSM. HIV prevention interventions should target MSM with early homosexual debut and psychosocial health problems, while HIV/AIDS education among MSM should focus on increasing knowledge of HIV risk, estimated HIV prevalence and antiretroviral therapy, and improving risk perception of HIV acquisition.