Secondhand smoke exposure and support for smoke-free policies in cities and rural areas of China from 2009 to 2015: a population-based cohort study (the ITC China Survey)

ObjectivesTo examine trends in smoking prevalence in key venues (workplaces, restaurants, bars) and in public support for comprehensive smoke-free laws, with comparisons between cities and rural areas in China.DesignData are from Waves 3–5 (2009–2015) of the International Tobacco Control (ITC) China...

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Bibliographic Details
Published in:BMJ open 2019-12, Vol.9 (12), p.e031891-e031891
Main Authors: Sansone, Genevieve, Fong, Geoffrey T, Yan, Mi, Meng, Gang, Craig, Lorraine, Xu, Steve S, Quah, Anne C K, Wu, Changbao, Feng, Guoze, Jiang, Yuan
Format: Article
Language:English
Subjects:
Bans
Cohort analysis
policy evaluation
Population-based studies
Public health
Restaurants
Rural areas
secondhand smoke
Smoking
Smoking and Tobacco
tobacco control
Tobacco smoke
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Summary:ObjectivesTo examine trends in smoking prevalence in key venues (workplaces, restaurants, bars) and in public support for comprehensive smoke-free laws, with comparisons between cities and rural areas in China.DesignData are from Waves 3–5 (2009–2015) of the International Tobacco Control (ITC) China Survey, a cohort survey of smokers and non-smokers. Logistic regression analyses employing generalised estimating equations assessed changes in smoking prevalence and support for smoke-free laws over time; specific tests assessed whether partial smoking bans implemented in three cities between Waves 3 and 4 had greater impact.SettingFace-to-face surveys were conducted in seven cities (Beijing, Changsha, Guangzhou, Kunming, Shanghai, Shenyang and Yinchuan) and five rural areas (Changzhi, Huzhou, Tongren, Yichun and Xining).ParticipantsIn each survey location at each wave, a representative sample of approximately 800 smokers and 200 non-smokers (aged 18+) were selected using a multistage cluster sampling design.Main outcome measuresPrevalence of smoking (whether respondents noticed smoking inside restaurants, bars and workplaces); smoking rules inside these venues; and support for complete smoking bans in these venues.ResultsAlthough smoking prevalence decreased and support increased over time, neither trend was greater in cities that implemented partial smoke-free laws. Smoking was higher in rural than urban workplaces (62% vs 44%, p
ISSN:2044-6055
2044-6055
DOI:10.1136/bmjopen-2019-031891