Correlates of substance use during adolescent pregnancy in Sao Paulo, Brazil

Objective: To investigate the association of cocaine and marijuana use during adolescent pregnancy in Sao 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 Sao 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.