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Published on: January 31, 2020
Do rates of unprotected anal intercourse among HIV-positive MSM present a risk for hepatitis C transmission?
Ron Stall1, Chongyi Wei, H Fisher Raymond
1Department of Behavioral and Community Health Sciences, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, USA. rstall@pitt.edu
Objectives:
To compare the rates of unprotected anal intercourse (UAI) among men who have sex with men (MSM) in HIV-seropositive sexual relationships with that among men in HIV-seronegative and serodiscordant relationships in the context of an emerging hepatitis C virus (HCV) epidemic among HIV-positive MSM.
Methods:
Time-location sampling was used to obtain a cross-sectional sample of MSM who attended public venues in San Francisco between November 2007 and October 2008 (N = 1199). Behavioural measures of sexual risk-taking at the level of the sexual dyad were administered to the sample.
Results:
Men in HIV-positive/positive sexual relationships are significantly more likely to have UAI and combine sex and drugs than men in negative/negative sexual relationships.
Conclusions:
If it is possible to spread HCV infection between HIV-positive men via UAI, very high levels of behavioural risk among positive MSM should exist to facilitate HCV transmission. Identifying the precise behavioural risk factors for HCV among HIV-positive MSM has become an important public health priority.
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