title: [Use of psychoactive substances and contraceptive methods by the Brazilian urban population, 2005].
abstract: OBJECTIVE
  To analyze the relationship between utilization patterns for condoms and other contraceptive methods and the consumption of alcohol and drugs.
  
  
  METHODS
  Exploratory study based on data from a probabilistic sample of 5,040 interviewees aged 16 to 65 years living in large urban regions of Brazil in 2005. The data were collected by means of questionnaires. The chi-square automatic interaction classification tree technique was used to study the use of condoms among interviewees of both sexes and other contraceptive methods among women, at the time of the last vaginal sexual intercourse.
  
  
  RESULTS
  Among young and middle-aged adults of both sexes and young men in stable relationships, condom use was less frequent among those who said they used psychoactive substances (alcohol and/or illegal drugs). The possible modulating effect of psychoactive substances on contraceptive practices among mature women seems to be more straightforward, compared to the more subtle effects observed among younger women, for whom the different social classes they belonged to seemed to play a more important role.
  
  
  CONCLUSIONS
  Despite the limitations resulting from an exploratory study, the fact that this was a representative sample of the urban population of Brazil and not from vulnerable populations, reinforces the need to implement integrated public policies directed towards the general population, with regard to preventing drug consumption, alcohol abuse, sexually transmitted infections, HIV/AIDS and unwanted pregnancy and promoting sexual and reproductive health.
authors.affiliation: Laboratório de Informações em Saúde, Instituto de Comunicação e Informação Científica e Tecnológica em Saúde, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil. bastos@cict.fiocruz.br
authors.forename: Francisco I
authors.initials: FI
authors.lastname: Bastos
authors.forename: Cynthia B
authors.initials: CB
authors.lastname: Cunha
authors.forename: Neilane
authors.initials: N
authors.lastname: Bertoni
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D000368:Aged; D001938:Brazil / Q000453:epidemiology; D017280:Condoms / Q000706:statistics & numerical data; D003267:Contraception / Q000706:statistics & numerical data*; D003268:Contraception Behavior; D005260:Female; D005298:Fertility / Q000502:physiology; D015658:HIV Infections / Q000517:prevention & control / Q000635:transmission; D006801:Humans; D008297:Male; D008875:Middle Aged; D011159:Population Surveillance; D011619:Psychotropic Drugs; D012098:Reproduction / Q000502:physiology; D012309:Risk-Taking; D017678:Sex Distribution; D012725:Sexual Behavior / Q000706:statistics & numerical data; D012749:Sexually Transmitted Diseases / Q000517:prevention & control / Q000635:transmission*; D019966:Substance-Related Disorders / Q000453:epidemiology*; D014505:Urban Population / Q000706:statistics & numerical data*; D055815:Young Adult
chemical_list: D011619:Psychotropic Drugs