[Differences in HIV-risk behavior of bisexual men in their relationships with men and women].

Objective: To describe bisexual men's behavior in terms of sexual identity, condom use, frequency of sexual intercourse and types of partners and to determine rates of inconsistent condom according to partner's gender.

Methods: Cross-sectional study nested in a cohort of HIV-negative homosexual and bisexual men in the city of Belo Horizonte, Southeastern Brazil, followed up since 1994 (Horizonte Project). Of 1,025 subjects enrolled between 1994 and 2005, 195 volunteers who reported at admission having sexual relations with men and women during the previous six months were selected.