RESUMO
HIV infection among young populations is increasing worldwide. Adolescents in mental health treatment have demonstrated higher rates of HIV risk behavior than their peers. This first risk behavior study of youth in psychiatric treatment in Brazil reports findings from a cross-sectional national sample of emerging adult psychiatric patients (18-25 years old). The prevalence of lifetime unprotected sex was 65.9%. Multiple logistic regression indicated that being married/in union; sex under the influence of alcohol/drugs; physical violence; earlier sexual debut; and depressive/substance use disorders were associated with unsafe sex. Interventions and services that address these risks during this critical developmental window are urgently needed.