title: Behaviorally bisexual men and their risk behaviors with men and women.
abstract: Gay and bisexual men are often treated as a homogenous group; however, there may be important differences between them. In addition, behaviorally bisexual men are a potential source of HIV infection for heterosexual women. In this study, we compared 97 men who have sex with men only (MSM) to 175 men who have sex with men and women (MSMW). We also compared the 175 MSMW to 772 men who have sex with women only (MSW). Bivariate and multiple logistic regression analyses were performed to assess correlates of MSMW risk behaviors with men and with women as well as whether MSMW, compared with MSW, engaged in more risky behaviors with women. Compared with MSM, MSMW were less likely to be HIV-positive or to engage in unprotected receptive anal intercourse. In contrast, MSMW were more likely than MSW to be HIV-positive and to engage in anal intercourse with their female partners; however, rates of unprotected anal intercourse were similar. The study findings suggest that there may be important differences in HIV risk behaviors and HIV prevalence between MSM and MSMW as well as between MSMW and MSW.
authors.affiliation: Substance Abuse Treatment Evaluation and Invention Research Program, RTI International, Research Triangle Park, NC 27709-2194, USA. zule@rti.org
authors.forename: William A
authors.initials: WA
authors.lastname: Zule
authors.forename: Georgiy V
authors.initials: GV
authors.lastname: Bobashev
authors.forename: Wendee M
authors.initials: WM
authors.lastname: Wechsberg
authors.forename: Elizabeth C
authors.initials: EC
authors.lastname: Costenbader
authors.forename: Curtis M
authors.initials: CM
authors.lastname: Coomes
mesh_terms: D000328:Adult; D001727:Bisexuality; D003430:Cross-Sectional Studies; D005260:Female; D015658:HIV Infections; D006801:Humans; D008297:Male; D008962:Models, Theoretical; D009657:North Carolina; D016017:Odds Ratio; D012309:Risk-Taking; D012725:Sexual Behavior / Q000145:classification; D012749:Sexually Transmitted Diseases / Q000175:diagnosis; D019966:Substance-Related Disorders; D011795:Surveys and Questionnaires