Correlates of concurrent partnerships and patterns of condom use among men who have sex with men and transgender women in Peru
Autoři:
Angela K. Ulrich aff001; Jorge Sanchez aff003; Javier R. Lama aff003; Lisa E. Manhart aff002; Steven M. Goodreau aff005; Ann C. Duerr aff001
Působiště autorů:
Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States of America
aff001; Department of Epidemiology, University of Washington, Seattle, WA, United States of America
aff002; Asociación Civil Impacta Salud y Educación, Lima, Peru
aff003; Centro de Investigaciones Tecnológicas, Biomédicas y Medioambientales, Callao, Peru
aff004; Department of Anthropology, University of Washington, Seattle, WA, United States of America
aff005
Vyšlo v časopise:
PLoS ONE 14(9)
Kategorie:
Research Article
prolekare.web.journal.doi_sk:
https://doi.org/10.1371/journal.pone.0222114
Souhrn
Background
In Peru, there is an ongoing high-incidence HIV epidemic among men who have sex with men (MSM) and transgender women (TW). Sexual concurrency, or having sex with a partner in between two acts of sex with another partner, may be a key factor in onward HIV transmission. In this study, we quantify concurrency, evaluate factors associated with concurrency, and assess condom use with concurrent partners among MSM and TW in Peru.
Methods
We conducted a secondary analysis of data from the 2011 Peruvian Biobehavioral Survey. Pearson’s Chi-squared test was used to identify individual-level characteristics associated with concurrency. We estimated the association between participant characteristics, concurrent partnerships, partnership type (stable vs. non-stable), and CLAI within the context of concurrent partnerships using multivariate and repeated-measure Poisson regression.
Results
3-month cumulative prevalence of concurrency was higher among TW compared to MSM (30.7% vs 25.2%, p = 0.014). Among those with concurrent stable and non-stable partners, 45% used condoms with both partners (95% CI: 40%-50%) and 30% preferentially had CLAI with the stable partner only (95%CI: 26%-35%). Factors associated with CLAI within the context of concurrent partnerships varied between MSM and TW.
Conclusions
Although concurrency is common among TW and MSM in Peru, patterns of concurrency and differential condom use may vary between TW and MSM. Future research may explore differential condom use with stable and non-stable partners to better understand behavioral factors that may alter vulnerability to HIV in TW compared to MSM.
Klíčová slova:
Biology and life sciences – Organisms – Physical sciences – Chemistry – People and places – Population groupings – Geographical locations – Medicine and health sciences – Chemical compounds – Microbiology – Medical microbiology – Microbial pathogens – Pathology and laboratory medicine – Pathogens – Organic compounds – Organic chemistry – Viral pathogens – Immunodeficiency viruses – HIV – Retroviruses – Lentivirus – Viruses – RNA viruses – Public and occupational health – Preventive medicine – South America – Epidemiology – Alcohols – Sexuality groupings – Men who have sex with men – Heterosexuals – Peru – HIV epidemiology – Prophylaxis – Pre-exposure prophylaxis – HIV prevention
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