ArticleBMJ open2014
Strong propensity for HIV transmission among men who have sex with men in Vietnam: behavioural data and sexual network modelling.
Article in BMJ open, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Perceived Versus Calculated HIV Risk: Implications for Pre-exposure Prophylaxis Uptake in a Randomized Trial of Men Who Have Sex With Men.Journal of acquired immune deficiency syndromes (1999) · 2019Trial
- Global spread and evolutionary trajectories of HIV-1 CRF01_AE: Insights from phylogenetic analysis.PloS one · 2026Article
- Viability of Web-Based Respondent-Driven Sampling of Belgian Men Who Have Sex With Men: Process Evaluation.Journal of medical Internet research · 2025Article
- Improving web-based respondent-driven sampling performance among men who have sex with men in the Netherlands.PLOS digital health · 2023Article
- Sexual violence experiences and pornography media exposure with sexual risk behavior among PLWHA MSM in Bandung, Indonesia.Journal of public health research · 2021Article
- Applications and Recruitment Performance of Web-Based Respondent-Driven Sampling: Scoping Review.Journal of medical Internet research · 2021Article
- Tracing the epidemic history of HIV-1 CRF01_AE clusters using near-complete genome sequences.Scientific reports · 2017Article
- The Prevalence and Correlates of HIV and Undiagnosed Infection among Men Who Have Sex with Men in Hanoi, Vietnam: Findings from a Cross-sectional, Biobehavioral Study.Frontiers in public health · 2016Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesSurvey data from men who have sex with men (MSM) in Asian cities indicate ongoing and drastic increases in HIV prevalence. It is unknown which behavioural factors are most important in driving these epidemics. We aimed to analyse detailed sexual behaviour data among MSM in Vietnam and to model HIV transmission using improved assumptions on sexual network structure.
settingVietnam.
participantsInternet-using men who had ever had sex (any type) with a man, aged ≥18 years and living in Vietnam. The study was cross-sectional, population-based and performed in 2012, using online respondent-driven sampling. The Internet-based survey instrument was completed by 982 participants, of which 857 were eligible. Questions included sociodemography and retrospective sexual behaviour, including number of unprotected anal sex (UAS) acts per partner. PRIMARY AND SECONDARY OUTCOME MEASURES: Estimated basic reproductive number over 3 months as a function of transmission risk per UAS act; frequency distributions of number of UAS partners and UAS acts during last 3 months.
results36% (CI 32% to 42%) reported UAS at least once during the last 3 months. 36% (CI 32% to 41%) had ever taken an HIV test and received the result. UAS partner numbers and number of UAS acts were both highly skewed and positively correlated. Using a weighted configuration model, taking into account partner numbers, frequency of UAS and their correlations, we estimated the basic reproductive number (R0) over 3 months. The results indicated rapid transmission over a wide range of values of per-act transmissibility.
conclusionsMen with multiple partners had unexpectedly high UAS frequency per partner, paired with low HIV testing rates. The study highlights the importance of collecting data on frequency of UAS acts and indicates the need to rapidly scale-up HIV prevention services and testing opportunities for MSM in Vietnam.
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