Real-world, anti-tobacco environmental impact upon price- induced smoking reduction among urban Chinese men: Evidence from China's 2015 cigarette tax increase

INTRODUCTION Raising the price of cigarettes via taxation has been promoted by the World Health Organization as an important tobacco control strategy. Price elasticity of cigarettes is not uniform and is dependent upon individual and environmental determinants. Many studies have examined the determinants of price-induced smoking, taking into account sociodemographic characteristics and consumption patterns. Little research has been conducted on the association between anti-smoking environments and price-induced smoking behavior. This study addresses the deficit within the Chinese context. METHODS Participants were 2852 male smokers identified through a multi-stage survey sampling process encompassing 6 cities in China between July and December 2016. A standardized questionnaire tapped price-induced smoking reduction and related information. Both unadjusted and adjusted logistic regression methods were applied in the analyses. RESULTS In all, 25.5% (95% CI: 22.5-27.9) of smokers in this study decreased their smoking expenditures following the 2015 excise tax increase. The adjusted logistic regression analysis showed that increased exposures to an anti-smoking information environment (AOR=1.39; 95% CI: 1.10-1.79), restricted smoking in their home (AOR=1.67; 95% CI: 1.32-2.08) and workplace (AOR=1.43; 95% CI: 1.09-1.85) were more likely to report diminished cigarette smoking following to increase the sensitivity of cigarette price changes among smokers.