Factors associated with condom use inyoung people-A population-based survey.

Introduction: This study aimed to identify the factors associated with condom use in the last sexual intercourse.

Methods: A population-based survey with young people aged 15-24, in the city of São Paulo, which collected sociodemographic data referring to knowledge about sex and sexual behavior.

Results: Among 821 sexually active young people interviewed in the last year, condom use in their last sexual intercourse was positively associated with: 1) not being married; 2) use of condom at sexual onset; and 3) receiving free condoms; additionally, among men: 4) casual partners in the previous year; and 5) partner of the same sex; and, amongwomen: 6) sexual onset after the age of 15.