title: Teenage pregnancy: use of drugs in the third trimester and prevalence of psychiatric disorders.
abstract: OBJECTIVE
  To determine the prevalence of psychiatric disorders during pregnancy, the prevalence of cocaine and marijuana use during the third trimester of gestation and the socio-demographic characteristics of a population of low-income teenagers.
  
  
  METHODS
  One thousand pregnant teenagers were evaluated using the Composite International Diagnostic Interview, and a socio-demographic and socio-economic questionnaire at the obstetric center of a public hospital in São Paulo, Brazil. Hair sample was collected for analysis.
  
  
  RESULTS
  Of the 1000 pregnant teenagers interviewed, 53.6% were poor, 90.4% were unemployed, 92.5% were financially dependent and 60.2% dropped out of school. Those using drugs during the third trimester of pregnancy were equal to 6% (marijuana: 4%, cocaine: 1.7%, both: 0.3%). Those having at least one psychiatric disorder equaled 27.6%. The most frequent diagnoses were depression (12.9%), posttraumatic stress disorder (10.0%) and anxiety disorders (5.6%).
  
  
  CONCLUSIONS
  Unstructured families, dropping out of school, unemployment and a low level of professional training are all contributing factors to the maintenance of an unfavorable socio-economic environment in which there is a high prevalence of cocaine and marijuana use during the third trimester of pregnancy and an abnormally high incidence of psychiatric disorders.
authors.affiliation: Research Unit of Alcohol and Drugs, Department of Psychiatry, Universidade Federal de São Paulo, São Paulo, SP, Brazil. mitsuhiro@uol.com.br
authors.forename: Sandro Sendin
authors.initials: SS
authors.lastname: Mitsuhiro
authors.forename: Elisa
authors.initials: E
authors.lastname: Chalem
authors.forename: Marina Moraes
authors.initials: MM
authors.lastname: Barros
authors.forename: Ruth
authors.initials: R
authors.lastname: Guinsburg
authors.forename: Ronaldo
authors.initials: R
authors.lastname: Laranjeira
mesh_terms: D000293:Adolescent; D000328:Adult; D001938:Brazil / Q000453:epidemiology; D002648:Child; D019970:Cocaine-Related Disorders / Q000453:epidemiology*; D017831:Diagnosis, Dual (Psychiatry); D005260:Female; D006197:Hair / Q000737:chemistry; D006801:Humans; D002189:Marijuana Abuse / Q000453:epidemiology*; D001523:Mental Disorders / Q000139:chemically induced / Q000453:epidemiology*; D011247:Pregnancy; D011263:Pregnancy Trimester, Third; D011253:Pregnancy in Adolescence / Q000523:psychology* / Q000706:statistics & numerical data; D015995:Prevalence; D011569:Psychiatric Status Rating Scales; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires