• Joseph E Bauer, Andrew Hyland, Qiang Li, Craig Steger, and K Michael Cummings.
• Department of Health Behavior, Division of Cancer Prevention and Population Sciences, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY 14263, USA.
• Am J Public Health. 2005 Jun 1; 95 (6): 1024-9.

ObjectivesIn this cohort study, we assessed the impact of smoke-free work-site policies on smoking cessation behaviors.MethodsSmokers 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.ResultsPeople 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.ConclusionsSmoke-free worksite policies help employees reduce their cigarette consumption and stop smoking.

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