Correlates of substance use during adolescent pregnancy in São Paulo, Brazil.

OBJECTIVE To investigate the association of cocaine and marijuana use during adolescent pregnancy in São Paulo-SP, Brazil, with psychiatric disorders, social status and sexual history. METHOD One thousand pregnant adolescents were assessed by using the Composite International Diagnostic Interview, and sociodemographic and socio-economic questionnaire at the obstetric center of a public hospital in São Paulo. Hair samples were collected for analysis. RESULTS The following data were associated with cocaine and/or marijuana use during the third trimester of the pregnancy: being younger than 14 years of age, having a history of more than 3 sexual partners, and having psychiatric disorders, specifically, bipolar disorder, post-traumatic stress disorder, and somatoform disorder. CONCLUSION In early adolescence pregnancy, having 3 or more sexual partners in life for this population is significantly associated with the use of cocaine or marijuana during gestation. This association suggests that specific intervention programs should target these young women.