title: Sexual orientation and tobacco use in a cohort study of US adolescent girls and boys.
abstract: OBJECTIVE
  To examine sexual-orientation group disparities in tobacco use in adolescent girls and boys.
  
  
  METHODS
  Survey data from 10685 adolescent girls and boys participating in 1999 in the Growing Up Today Study were examined cross-sectionally.
  
  
  METHODS
  Community-based population of adolescents living throughout the United States. Main Outcome Measure Prevalence of tobacco use.
  
  
  RESULTS
  Ninety-two percent of the participants described themselves as heterosexual (n = 9296), 5% as mostly heterosexual (n = 511), 1% as lesbian/gay/bisexual (n = 103), and 2% as unsure (n = 226). Ages ranged from 12 to 17 years. Compared with heterosexuals, mostly heterosexual girls were 2.5 (95% confidence interval, 1.8-3.5), lesbian/bisexual girls were 9.7 (95% confidence interval, 5.1-18.4), and mostly heterosexual boys were 2.5 (95% confidence interval, 1.4-4.6) times more likely to smoke at least weekly. In contrast, gay/bisexual boys were not more likely to smoke. Findings persisted even when controlling for multiple sociodemographic and psychosocial covariates.
  
  
  CONCLUSIONS
  Our findings indicate that mostly heterosexual adolescents of both sexes and lesbian/bisexual girls are at heightened risk for tobacco use.
authors.affiliation: Division of Adolescent and Young Adult Medicine, Children's Hospital, Channing Laboratory, Boston, Massachusetts 02115, USA. bryn.austin@tch.harvard.edu
authors.forename: S Bryn
authors.initials: SB
authors.lastname: Austin
authors.forename: Najat
authors.initials: N
authors.lastname: Ziyadeh
authors.forename: Laurie B
authors.initials: LB
authors.lastname: Fisher
authors.forename: Jessica A
authors.initials: JA
authors.lastname: Kahn
authors.forename: Graham A
authors.initials: GA
authors.lastname: Colditz
authors.forename: A Lindsay
authors.initials: AL
authors.lastname: Frazier
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior; D002648:Child; D015331:Cohort Studies; D003430:Cross-Sectional Studies; D005260:Female; D006306:Health Surveys; D006801:Humans; D008297:Male; D015999:Multivariate Analysis; D015995:Prevalence; D012737:Sex Factors; D019529:Sexuality / Q000706:statistics & numerical data*; D012907:Smoking / Q000453:epidemiology*; D014481:United States / Q000453:epidemiology