title: A longitudinal assessment of the impact of smoke-free worksite policies on tobacco use.
abstract: OBJECTIVE
  In this cohort study, we assessed the impact of smoke-free work-site policies on smoking cessation behaviors.
  
  
  METHODS
  Smokers were tracked as part of the Community Intervention Trial for Smoking Cessation. Telephone surveys were administered to 1967 employed smokers in 1993 and 2001. Data were gathered on personal and demographic characteristics, tobacco use behaviors, and restrictiveness of worksite smoking policies.
  
  
  RESULTS
  People who worked in environments that changed to or maintained smoke-free policies between 1993 and 2001 were 1.9 times more likely (odds ratio [OR] = 1.92; 95% confidence interval [CI] = 1.11, 3.32) than people whose worksites did not do so to have stopped smoking by 2001. Continuing smokers decreased their average daily consumption by 2.57 cigarettes. People working in environments that had smoke-free policies in place in both 1993 and 2001 were 2.3 times more likely (OR=2.29; 95% CI=1.08, 4.45) than people not working in such environments to have quit by 2001, and continuing smokers reported a decline in average daily consumption of 3.85 cigarettes.
  
  
  CONCLUSIONS
  Smoke-free worksite policies help employees reduce their cigarette consumption and stop smoking.
authors.affiliation: Department of Health Behavior, Division of Cancer Prevention and Population Sciences, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY 14263, USA.
authors.forename: Joseph E
authors.initials: JE
authors.lastname: Bauer
authors.forename: Andrew
authors.initials: A
authors.lastname: Hyland
authors.forename: Qiang
authors.initials: Q
authors.lastname: Li
authors.forename: Craig
authors.initials: C
authors.lastname: Steger
authors.forename: K Michael
authors.initials: KM
authors.lastname: Cummings
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D040261:Harm Reduction; D006293:Health Promotion; D006801:Humans; D008297:Male; D008875:Middle Aged; D016272:Occupational Health; D016134:Organizational Policy; D011446:Prospective Studies; D012907:Smoking / Q000453:epidemiology; D016540:Smoking Cessation / Q000706:statistics & numerical data*; D000074606:Smoking Prevention; D013997:Time Factors; D014028:Tobacco Smoke Pollution / Q000517:prevention & control*; D014029:Tobacco Use Disorder / Q000453:epidemiology / Q000517:prevention & control*; D017132:Workplace / Q000458:organization & administration*
chemical_list: D014028:Tobacco Smoke Pollution