Use of multiple sex venues and prevalence of HIV risk behavior: identifying high-risk men who have sex with men.

The National HIV/AIDS Strategy emphasizes the importance of bringing prevention to the most at risk populations. Interventions targeting all men who have sex with men (MSM) fail in that respect because only a minority engages in behavior that is likely to lead to HIV infection. Previous studies have shown that MSM who seek male sexual partners in more than one venue type (e.g., bathhouse, cruising area, online) are most likely to engage in unprotected anal intercourse (UAI), compared to men who only meet partners in any one of these setting types or who do not use venues. The present study reports differences in prevalence of UAI among MSM by their use of venue sites to meet sexual partners. A probability sample of 459 bathhouse patrons completed exit surveys. In the 3 months before the current bathhouse visit, 63.5 % visited a bathhouse (not including the visit at which they were recruited), 46.7 % visited a cruising area, 46.5 % used online cruise sites to find sex partners, and 30.9 % reported UAI. While UAI was associated with online cruise site use, prevalence of UAI with men met online was relatively low. The odds of UAI among men who used all three venues were significantly higher compared to men using zero [odds ratio (OR) = 4.4; 95 % confidence interval (CI) 1.6, 12.1)] one (OR = 5.3; 95 % CI 2.2, 12.8) or two venues (OR = 4.3; 95 % CI 1.9, 9.6). The findings suggest that prevention would benefit from screening for venue use to help identify men with the greatest behavioral risk.