title: Age of smoking onset as a predictor of smoking cessation during pregnancy.
abstract: OBJECTIVE
  To assess age of smoking onset as a predictor of smoking cessation during pregnancy.
  
  
  METHODS
  Multivariate logistic regression analysis of cross-sectional data for 35,687 women 15-34 years old from the 2000 and 2001 National Household Survey on Drug Abuse.
  
  
  RESULTS
  Pregnant women (1805) were twice as likely to abstain as nonpregnant women (47.7% vs 23.3%). Initiation of smoking at >15 years old was associated with increased likelihood of 30-day abstinence during pregnancy (OR=1.75) after adjusting for confounders.
  
  
  CONCLUSIONS
  The earlier a woman starts smoking, the more likely it is that she will smoke during pregnancy, underscoring the need for early prevention to protect mothers and the fetuses.
authors.affiliation: Prevention Research Center, The Carman and Ann Adams Department of Pediatrics, Wayne State University School of Medicine, 4201 St. Antoine Street, Detroit, MI 48201, USA. jimchen@med.wayne.edu
authors.forename: Xinguang
authors.initials: X
authors.lastname: Chen
authors.forename: Bonita
authors.initials: B
authors.lastname: Stanton
authors.forename: Seetha
authors.initials: S
authors.lastname: Shankaran
authors.forename: Xiaoming
authors.initials: X
authors.lastname: Li
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D003430:Cross-Sectional Studies; D005260:Female; D015438:Health Behavior; D006306:Health Surveys; D006801:Humans; D016013:Likelihood Functions; D011247:Pregnancy / Q000523:psychology* / Q000706:statistics & numerical data*; D012016:Reference Values; D012907:Smoking / Q000453:epidemiology* / Q000523:psychology; D016540:Smoking Cessation / Q000523:psychology* / Q000706:statistics & numerical data*; D014481:United States