title: Predictors of the occurrence of smoking discontinuation in novice adolescent smokers.
abstract: BACKGROUND
  While long-term cessation is an outcome of interest in adult smokers, little is known about discontinuing smoking in adolescent smokers. The objective was to identify the predictors of the occurrence of smoking discontinuation in novice smokers.
  
  
  METHODS
  Data were available for 620 adolescent smokers participating in a longitudinal study on the natural course of nicotine dependence. Data on smoking discontinuation (i.e., stopping smoking for ≥12 consecutive months) were collected in 20 cycles over five years from grade 7 to 11 (1999-2005). Data on 37 potential predictors representing a wide range of demographic, psychosocial, health, lifestyle, smoking-related, and context-related characteristics were collected once, 2 to 3 times, or 20 times. Pooled logistic regression was used to test the association between each potential predictor and smoking discontinuation, adjusting for potential confounders.
  
  
  RESULTS
  Forty percent of 620 participants discontinued smoking during follow up. Male sex [OR (95% confidence interval), 1.8 (1.3-2.4)], age [1.3 (1.1-1.5)], cigarette package warnings [0.6 (0.5-0.9)], team sports participation [1.4 (1.1-1.9)], family stress [0.7 (0.6-1.0)], worrying about weight [0.6 (0.5-0.9)], overweight [0.7 (0.5-1.0)], illicit drugs use [0.5 (0.4-0.7)], tolerance [0.6 (0.4-1.0)], and other nicotine dependence symptoms [1.0 (0.9-1.0)] were statistically significantly associated with smoking discontinuation.
  
  
  CONCLUSIONS
  Both individual and context-level factors were associated with smoking discontinuation.
  
  
  CONCLUSIONS
  Programs and policy targeting novice adolescent smokers may be more effective if factors associated with long-term smoking discontinuation are taken into consideration. In particular, young smokers may need help with dependence symptoms, body weight issues, family functioning, and polysubstance use. Cigarette package warnings may be effective in helping adolescents discontinue smoking. Cancer Epidemiol Biomarkers Prev; 23(6); 1090-101. ©2014 AACR.
authors.affiliation: Authors' Affiliations: Centre de recherche CHUM, Department of Social and Preventive Medicine, University of Montréal, and Institut national de santé publique du Québec, Montreal, Quebec, CanadaAuthors' Affiliations: Centre de recherche CHUM, Department of Social and Preventive Medicine, University of Montréal, and Institut national de santé publique du Québec, Montreal, Quebec, CanadaAuthors' Affiliations: Centre de recherche CHUM, Department of Social and Preventive Medicine, University of Montréal, and Institut national de santé publique du Québec, Montreal, Quebec, Canada jennifer.oloughlin@umontreal.ca.
authors.forename: Jennifer L
authors.initials: JL
authors.lastname: O'Loughlin
authors.affiliation: Authors' Affiliations: Centre de recherche CHUM, Department of Social and Preventive Medicine, University of Montréal, and Institut national de santé publique du Québec, Montreal, Quebec, CanadaAuthors' Affiliations: Centre de recherche CHUM, Department of Social and Preventive Medicine, University of Montréal, and Institut national de santé publique du Québec, Montreal, Quebec, Canada.
authors.forename: Marie-Pierre
authors.initials: MP
authors.lastname: Sylvestre
authors.affiliation: Authors' Affiliations: Centre de recherche CHUM, Department of Social and Preventive Medicine, University of Montréal, and Institut national de santé publique du Québec, Montreal, Quebec, Canada.
authors.forename: Erika N
authors.initials: EN
authors.lastname: Dugas
authors.affiliation: Authors' Affiliations: Centre de recherche CHUM, Department of Social and Preventive Medicine, University of Montréal, and Institut national de santé publique du Québec, Montreal, Quebec, CanadaAuthors' Affiliations: Centre de recherche CHUM, Department of Social and Preventive Medicine, University of Montréal, and Institut national de santé publique du Québec, Montreal, Quebec, Canada.
authors.forename: Igor
authors.initials: I
authors.lastname: Karp
mesh_terms: D000293:Adolescent; D005260:Female; D006801:Humans; D008297:Male; D012907:Smoking / Q000453:epidemiology*; D016540:Smoking Cessation / Q000706:statistics & numerical data*