title: Progression to established smoking among US youths.
abstract: OBJECTIVE
  Our study presents national estimates of the proportion of youths in each of 7 stages of smoking and investigates the associations between risk/protective factors and progression to established smoking.
  
  
  METHODS
  We analyzed data from the 1999 and 2000 National Youth Tobacco Surveys.
  
  
  RESULTS
  In 1999 and 2000, 48.6% of US adolescents had at least experimented with tobacco, and 7.8% were established smokers. Important correlates of progression to established smoking included parental advice not to smoke, antismoking lessons in school, susceptibility to tobacco industry advertising and promotion, peer smoking, and exposure to smoking at home.
  
  
  CONCLUSIONS
  Interventions to stop adolescent progression to established smoking should target susceptible never smokers and early experimenters as well as those in later stages of smoking.
authors.affiliation: RTI International, Research Triangle Park, NC, USA. pdm@rti.org
authors.forename: Paul D
authors.initials: PD
authors.lastname: Mowery
authors.forename: Matthew C
authors.initials: MC
authors.lastname: Farrelly
authors.forename: M Lyndon
authors.initials: ML
authors.lastname: Haviland
authors.forename: Julia M
authors.initials: JM
authors.lastname: Gable
authors.forename: Henry E
authors.initials: HE
authors.lastname: Wells
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior / Q000208:ethnology / Q000523:psychology*; D017677:Age Distribution; D003430:Cross-Sectional Studies; D018450:Disease Progression; D005260:Female; D006293:Health Promotion / Q000379:methods; D006306:Health Surveys; D006801:Humans; D008297:Male; D040541:Marketing; D016017:Odds Ratio; D016487:Parenting; D012307:Risk Factors; D012574:Schools; D017678:Sex Distribution; D012907:Smoking / Q000453:epidemiology* / Q000208:ethnology / Q000523:psychology; D000074606:Smoking Prevention; D040241:Social Marketing; D011795:Surveys and Questionnaires; D019460:Tobacco Industry; D014481:United States / Q000453:epidemiology