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BMJ Open. 2014 Feb 17;4(2):e004273. doi: 10.1136/bmjopen-2013-004273.

Second-hand smoke exposure in different types of venues: before and after the implementation of smoke-free legislation in Guangzhou, China.

Author information

1
Guangdong Key Laboratory of Molecular Epidemiology, School of Public Health, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China.

Abstract

OBJECTIVES:

Smoke-free legislation was implemented in Guangzhou on 1 September 2010. However, the smoke-free policy did not cover all indoor areas and smoking rooms can be set in some public places. This study aimed to assess changes in self-reported second-hand smoke (SHS) exposure in different types of venues and in homes, in order to evaluate the effectiveness of smoke-free legislation.

METHODS/DESIGN:

A repeated cross-sectional survey of representative participants was conducted in Guangzhou before and after the smoke-free legislation. Logistic regression models were used to examine the effectiveness of smoke-free legislation.

MAIN OUTCOME MEASURES:

Self-reported exposure to SHS,antitobacco advertisements and tobacco advertisements.

PARTICIPANTS:

A total of 4900 participants before the ban and 5135 participants after the ban were selected using a multistage stratified design.

RESULTS:

In full smoking ban places, overall self-reported SHS exposure has declined significantly from 58.8% to 50.3% (p<0.05) with greater drops in cultural venues, government offices and commercial venues. The smoke-free policy did not alter SHS exposure in smokers' homes (39.6% in 2009 vs 40.0% in 2011; p=0.454). Although a slight decrease in SHS exposure was observed in smoking rooms in hotels, workplaces, restaurants, cafes/bars/nightclubs and amusement parks, SHS continued to be high in those areas. The implementation of smoke-free legislation was accompanied by an increase in antitobacco advertisements.

CONCLUSIONS:

SHS exposure declines more significantly in full smoking ban places than in partial smoking ban places. The smoke-free policy in public places does not lead to more SHS exposure in homes. Therefore, it is recommended that Guangzhou should implement a 100% smoke-free policy in all public places and workplaces in the future.

KEYWORDS:

Epidemiology; Public Health

PMID:
24534259
PMCID:
PMC3927996
DOI:
10.1136/bmjopen-2013-004273
[Indexed for MEDLINE]
Free PMC Article

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