Concurrent Partnerships and HIV Risk Among Men Who Have Sex With Men in New York City

Tieu, Hong Van; Nandi, Vijay; Frye, Victoria; Stewart, Kiwan; Oquendo, Heriberto; Bush, Blaz; Cerdá, Magdalena; Hoover, Donald R.; Ompad, Danielle C.; Koblin, Beryl A.

doi:10.1097/olq.0000000000000090

Cited by 33 publications

(27 citation statements)

References 33 publications

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“…The prevalence of concurrency (54%) in our sample of recently HIV-infected MSM is similar to that documented in previous studies (45% to 63%) [14, 15]. Our findings combined with those from simulation studies [5-7], suggest this high prevalence of concurrency may contribute to the disproportionate burden of HIV among MSM in the United States and point to the need for HIV prevention strategies that mitigate the effect of concurrency on HIV transmission within this population.…”

Section: Discussionsupporting

confidence: 90%

“…Previous research suggests concurrency is common among MSM in the United States, with 63% of MSM surveyed in New York City reporting concurrent partners in the past three months [14] and 45% of MSM evaluated in a national, web-based survey reporting concurrent partners in the past six months [15]. Thus, even a small increased risk of HIV transmission due to concurrency during acute or early infection could have a substantial impact on the HIV epidemic among MSM.…”

Section: Introductionmentioning

confidence: 99%

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Concurrency and HIV transmission network characteristics among MSM with recent HIV infection

Pines

Wertheim

Liu

et al. 2016

Aids

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Objective Sexual partner concurrency is common among men who have sex with men (MSM) and may increase the probability of HIV transmission during recent (acute or early) infection. We examined the relationship between concurrency and HIV transmission network characteristics (proxies for HIV transmission) among MSM with recent HIV infection. Design Observational study integrating behavioral, clinical, and molecular epidemiology. Methods We inferred a partial HIV transmission network using 986 HIV-1 pol sequences obtained from HIV-infected individuals in San Diego, California (1996-2015). We further analyzed data from 285 recently HIV-infected MSM in the network who provided information on up to three sexual partners in the past three months, including the timing of intercourse with each partner. Concurrency was defined as sexual partners overlapping in time. Logistic and negative binomial regression were used to investigate the link between concurrency and HIV transmission network characteristics (i.e., clustering and degree or number of connections to others in the network) among these MSM. Results Of recently HIV-infected MSM (N=285), 54% reported concurrent partnerships and 54% were connected by ≥1 putative transmission link to others (i.e., clustered) in the network (median degree=1.0; interquartile range: 0.0-3.0). Concurrency was positively associated with HIV transmission network clustering (adjusted odds ratio=1.83, 95% confidence interval [CI]: 1.08-3.10) and degree (adjusted incidence rate ratio=1.48, 95% CI: 1.02-2.15) Conclusions Our findings provide empirical evidence consistent with the hypothesis that concurrency facilitates HIV transmission during recent infection. Interventions to mitigate the impact of concurrency on HIV transmission may help curb the HIV epidemic among MSM.

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Section: Discussionsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Concurrency and HIV transmission network characteristics among MSM with recent HIV infection

Pines

Wertheim

Liu

et al. 2016

Aids

View full text Add to dashboard Cite

show abstract

“…20 However, risk behaviours have also been found to be associated with having anonymous partners. 21 Our study may have been limited in assessing confounders in the relationship between STI and having anonymous sex partners. This association should be examined further using qualitative and quantitative methodologies.…”

Section: Discussionmentioning

confidence: 97%

Sexually transmitted infections associated with alcohol use and HIV infection among men who have sex with men in Kampala, Uganda

et al. 2015

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Objectives Few studies have been conducted in Africa to assess prevalence of sexually transmitted infections (STIs) and risk factors among men who have sex with men (MSM). We report findings from the first behavioural survey to include STI testing among MSM in Kampala, Uganda. Methods Respondent-driven sampling (RDS) was used to recruit MSM for a biobehavioural survey. Eligible participants were men who reported anal sex with another man in the previous 3 months, were 18 years or older, and resided in Kampala. Information was collected on demographics, sexual behaviour, alcohol and drug use, and STI symptoms. Blood, urine and rectal specimens were tested for syphilis, HIV, rectal and urethral gonorrhoea, and chlamydia. Analyses weighted for RDS were conducted to assess associations with STI diagnosis. Results A total of 295 MSM participated in the survey. Almost half (weighted percentage: 47.3%) reported STI symptoms in the last 6 months and 12.9% tested HIV-positive. Prevalence of non-HIV STI was 13.5%; syphilis prevalence was 9.0%. Adjusting for age and education, STI was associated with HIV (adjusted OR (AOR)=3.46, 95% CI 1.03 to 11.64), alcohol use before sex (AOR=4.99, 95% CI 1.86 to 13.38) and having sold sex in the last 3 months (AOR=3.17, 95% CI 1.25 to 8.07), and inversely associated with having anonymous sex partners (AOR=0.20, 95% CI 0.07 to 0.61). Conclusions We observed high levels of self-reported STI symptoms and STI prevalence associated with alcohol use and HIV among MSM in Kampala. Public health interventions supporting MSM are needed to address STI risk and facilitate access to diagnosis and treatment services.

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“…The methods have been described previously. 15,16 In brief, MSM were recruited using two methods: (1) in-person recruitment utilizing a modified venue-based, time-space sampling methodology, and (2) internet-and mobile application-based recruitment. Men were eligible if they were biological male at birth, ‡18 years old, resided in NYC, and engaged in anal sex with a man in the last 3 months.…”

Section: Methodsmentioning

confidence: 99%

Do Sexual Networks of Men Who Have Sex with Men in New York City Differ by Race/Ethnicity?

Tieu

Nandi

Hoover

et al. 2016

AIDS Patient Care and STDs

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The United States HIV epidemic disproportionately affects Black and Hispanic men who have sex with men (MSM). This disparity might be partially explained by differences in social and sexual network structure and composition. A total of 1267 MSM in New York City completed an ACASI survey and egocentric social and sexual network inventory about their sex partners in the past 3 months, and underwent HIV testing. Social and sexual network structure and composition were compared by race/ethnicity of the egos: black, non-Hispanic (N = 365 egos), white, non-Hispanic (N = 466), and Hispanic (N = 436). 21.1% were HIV-positive by HIV testing; 17.2% reported serodiscordant and serostatus unknown unprotected anal/vaginal intercourse (SDUI) in the last 3 months. Black MSM were more likely than white and Hispanic MSM to report exclusively having partners of same race/ethnicity. Black and Hispanic MSM had more HIV-positive and unknown status partners than white MSM. White men were more likely to report overlap of social and sex partners than black and Hispanic men. No significant differences by race/ethnicity were found for network size, density, having concurrent partners, or having partners with ≥10 years age difference. Specific network composition characteristics may explain racial/ethnic disparities in HIV infection rates among MSM, including HIV status of sex partners in networks and lack of social support within sexual networks. Network structural characteristics such as size and density do not appear to have such an impact. These data add to our understanding of the complexity of social factors affecting black MSM and Hispanic MSM in the U.S.

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Concurrent Partnerships and HIV Risk Among Men Who Have Sex With Men in New York City

Cited by 33 publications

References 33 publications

Concurrency and HIV transmission network characteristics among MSM with recent HIV infection

Concurrency and HIV transmission network characteristics among MSM with recent HIV infection

Sexually transmitted infections associated with alcohol use and HIV infection among men who have sex with men in Kampala, Uganda

Do Sexual Networks of Men Who Have Sex with Men in New York City Differ by Race/Ethnicity?

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