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HIV seroadaptation among individuals, within sexual dyads, and by sexual episodes, men who have sex with men, San Francisco, 2008

McFarland, W and Chen, YH and Raymond, HF and Nguyen, B and Colfax, G and Mehrtens, J and Robertson, T and Stall, R and Levine, D and Truong, HHM (2011) HIV seroadaptation among individuals, within sexual dyads, and by sexual episodes, men who have sex with men, San Francisco, 2008. AIDS Care - Psychological and Socio-Medical Aspects of AIDS/HIV, 23 (3). 261 - 268. ISSN 0954-0121

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"Seroadaptation" comprises sexual behaviors to reduce the risk of HIV acquisition and transmission based on knowing one's own and one's sexual partners' serostatus. We measured the prevalence of seroadaptive behaviors among men who have sex with men (MSM) recruited through time-location sampling (TLS) across three perspectives: by individuals (N=1207 MSM), among sexual dyads (N=3746 partnerships), and for sexual episodes (N=63,789 episodes) in the preceding six months. Seroadaptation was more common than 100% condom use when considering the consistent behavioral pattern of individuals (adopted by 39.1% vs. 25.0% of men, respectively). Among sexual dyads 100% condom use was more common than seroadaptation (33.1% vs. 26.4%, respectively). Considering episodes of sex, not having anal intercourse (65.0%) and condom use (16.0%) were the most common risk reduction behaviors. Sex of highest acquisition and transmission risks (unprotected anal intercourse with a HIV serodiscordant or unknown status partner in the riskier position) occurred in only 1.6% of sexual episodes. In aggregate, MSM achieve a high level of sexual harm reduction through multiple strategies. Detailed measures of seroadaptive behaviors are needed to effectively target HIV risk and gauge the potential of serosorting and related sexual harm reduction strategies on the HIV epidemic. © 2011 Taylor & Francis.


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Item Type: Article
Status: Published
CreatorsEmailPitt UsernameORCID
McFarland, W
Chen, YH
Raymond, HF
Nguyen, B
Colfax, G
Mehrtens, J
Robertson, T
Stall, Rrstall@pitt.eduRSTALL
Levine, D
Truong, HHM
Centers: Other Centers, Institutes, Offices, or Units > Center for LGBT Health Research
Date: 1 March 2011
Date Type: Publication
Journal or Publication Title: AIDS Care - Psychological and Socio-Medical Aspects of AIDS/HIV
Volume: 23
Number: 3
Page Range: 261 - 268
DOI or Unique Handle: 10.1080/09540121.2010.507748
Schools and Programs: Graduate School of Public Health > Behavioral and Community Health Sciences
Refereed: Yes
ISSN: 0954-0121
MeSH Headings: Adolescent; Adult; Aged; Aged, 80 and over; Condoms; HIV Infections--epidemiology; HIV Infections--prevention & control; HIV Seronegativity; HIV Seropositivity--psychology; Homosexuality, Male--psychology; Humans; Male; Middle Aged; Prevalence; Risk Factors; Risk Reduction Behavior; Safe Sex--psychology; San Francisco--epidemiology; Sexual Behavior--psychology; Sexually Transmitted Diseases--prevention & control; Sexually Transmitted Diseases--transmission; Young Adult
Other ID: NLM NIHMS272854, NLM PMC3076302
PubMed Central ID: PMC3076302
PubMed ID: 21347888
Date Deposited: 12 Jun 2013 21:28
Last Modified: 02 Feb 2019 15:55


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