TY - JOUR T1 - Awareness and prevalence of e-cigarette use among Chinese adults: policy implications JF - Tobacco Control JO - Tob Control SP - 498 LP - 504 DO - 10.1136/tobaccocontrol-2020-056114 VL - 31 IS - 4 AU - Lin Xiao AU - Xi Yin AU - Xinbo Di AU - Yi Nan AU - Tianchu Lyu AU - Yiqun Wu AU - Xinhua Li Y1 - 2022/07/01 UR - http://tobaccocontrol.bmj.com/content/31/4/498.abstract N2 - Objective To assess the awareness and prevalence of electronic cigarettes (e-cigarettes) and associated factors among Chinese adults (15 years and older).Method This study examined data from Global Adults Tobacco Survey China Project, which was nationally representative and used stratified multiphase cluster randomised sampling design. Data were collected in 2018 through a household survey with in-person interviews using tablet computers. Complex sampling weighted analysis method was used.Results 48.5% of Chinese adults had heard of e-cigarettes. The proportions of Chinese adults who had ever used, had used in the last 12 months, and currently used e-cigarettes were 5.0%, 2.2% and 0.9%, respectively; people in the 15–24 years group showed the highest rates of ever use, last 12-month use and current use at 7.6%, 4.4%, and 1.5%, respectively. Among males, higher e-cigarette use was associated with 15–24 years age group, college/university or above education, and daily use of combustible cigarettes. Among all e-cigarette users, 90.6% also used combustible cigarettes. The most common reason for e-cigarette use was smoking cessation (46.2%) while among ever smokers, 9.5% of ever e-cigarette users had quit smoking and 21.8% of never e-cigarette users had quit smoking (adjusted OR 0.454, 95% CI 0.290 to 0.712).Conclusion Prevalence of e-cigarettes among Chinese adults had increased since 2015, especially among young people aged 15–24. The high level of dual use and lower quit rate among e-cigarette users indicated e-cigarettes had not shown cessation utility at the population level in China. Regulation of e-cigarettes is needed to protect youth and minimise health risks.All data relevant to the study are included in the article or uploaded as online supplemental information. All of the paper text can be published. ER -