Teenage smoking behaviour following a high-school smoking ban in Chile: interrupted time-series analysis
Feigl, Andrea B
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CitationFeigl, Andrea B, Joshua A Salomon, Goodarz Danaei, Eric L Ding, and Esteban Calvo. 2015. “Teenage smoking behaviour following a high-school smoking ban in Chile: interrupted time-series analysis.” Bulletin of the World Health Organization 93 (7): 468-475. doi:10.2471/BLT.14.146092. http://dx.doi.org/10.2471/BLT.14.146092.
AbstractAbstract Objective: To evaluate the effect of a smoking ban in high schools on smoking behaviour among Chilean students. Methods: We conducted an interrupted time-series analysis, using repeated cross-sectional data from Chile’s school population survey (2000–2011) for high-school students aged 12–18 years and a control group of persons aged 19–24 years. Poisson regression models were used to assess trends in smoking behaviour before and after the policy changes. The outcome measures were self-reported smoking prevalence (any smoking in the past month) and high frequency of smoking (smoking 15 days or more per month). Findings: From 2005 to 2011, the prevalence of smoking declined among high-school students by 6.8% per year compared with 3.6% decline per year in the control group. The decline in the target group was 2.9% (95% confidence interval, CI: 0.18 to 5.00) greater. We estimated that 5–6 years after enforcing the law, smoking prevalence among high-school students was 13.7% lower as a result of the ban. The impact of the smoking ban was primarily driven by declines in smoking prevalence among students in grades 8 to 10. The smoking ban did not significantly alter the frequency of smoking. Conclusion: The 2005 school smoking ban reduced smoking prevalence among younger high-school students in Chile. Further interventions targeting older individuals and frequent smokers may be needed.
Citable link to this pagehttp://nrs.harvard.edu/urn-3:HUL.InstRepos:17820709
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