[Sexually transmitted diseases and gender: a cross-sectional study with adolescents in Rio de Janeiro].

Sexually transmitted diseases (STDs) are frequent in adolescence and contribute to the increase in the number of AIDS cases. Early sexual initiation, multiple sex partners, and lack of condom use are considered risk factors and are influenced by a male-dominated gender system. We interviewed 356 adolescent patients at the Adolescent Health Research Center in Rio de Janeiro State University to identify possible STD risk factors in adolescence. Young men reported more partners and early sexual initiation. Females used condoms less frequently and were more subject to sexual abuse. The results confirm a model sustained by traditional gender values that demarcate the male and female spheres, with male supremacy. We conclude that to achieve more effective STD control, it is necessary to expand the discussion on culturally constructed patterns of masculinity and femininity.