Tobacco Control Office, Chinese Center for Disease Control and Prevention, Beijing, China.
Tobacco Control Research Branch, National Cancer Institute, Rockville, MD.
Nicotine Tob Res. 2019 Sep 19;21(10):1401-1407. doi: 10.1093/ntr/nty145.
This study provides nationally representative estimates of electronic cigarette (e-cigarette) use among youth in China and explores the factors associated with awareness and use of e-cigarettes and the relationship between e-cigarette and conventional tobacco use.
This study examined data from the Global Youth Tobacco Survey, which was completed by 155 117 middle school students (51.8% boys and 48.2% girls) in China, and employed a multistage stratified cluster sampling design. For data analysis, SAS 9.3 complex survey procedures were used, and logistic regression was used to explore factors associated with e-cigarette use and the relationship between e-cigarette and conventional tobacco use.
About 45.0% of middle school students had heard of e-cigarettes, but only 1.2% reported using e-cigarettes in the last 30 days. Among never-smokers, e-cigarette users were more likely to intend to use a tobacco product in the next 12 months than nonusers (adjusted odds ratio [OR] = 6.970, 95% confidence interval [CI] = 4.474% to 10.857%), and more likely to say that they would enjoy smoking a cigarette (adjusted OR = 14.633, 95% CI = 11.328% to 18.902%). E-cigarette use was associated with previous experimentation with cigarette smoking (OR = 3.2), having noticed tobacco advertising in the past 30 days (OR = 2.7), having close friends who smoke (OR = 1.4), and thinking tobacco helps people feel more comfortable in social situations (OR = 3.3) and makes young people look more attractive (OR = 1.3).
E-cigarette use among youth in China remains low but awareness is high. E-cigarette use was associated with increased intentions to use tobacco. Enhanced prevention efforts are needed targeting e-cigarette use among youth.
This study is the first nationally representative survey of e-cigarette use among youth in China. It found that among middle school students, prevalence of e-cigarette use is 1.2% and prevalence of e-cigarette awareness is 45.0%. Chinese youths use e-cigarettes as a tobacco product rather than an aid to quitting. Among never-smokers, e-cigarette users were more likely to have intentions to use a tobacco product in the next 12 months, more likely to use a tobacco product offered by their best friends and enjoy smoking a cigarette than nonusers.
本研究提供了中国青少年使用电子烟的全国代表性估计，并探讨了与电子烟知晓和使用相关的因素，以及电子烟与传统烟草使用之间的关系。
本研究利用中国完成的全球青少年烟草调查数据，该调查共纳入 155117 名中学生（51.8%为男生，48.2%为女生），采用多阶段分层聚类抽样设计。数据分析采用 SAS9.3 复杂调查程序，采用 logistic 回归探讨电子烟使用的相关因素，以及电子烟与传统烟草使用之间的关系。
约 45.0%的中学生听说过电子烟，但只有 1.2%的人报告在过去 30 天内使用过电子烟。在从未吸烟的学生中，电子烟使用者在未来 12 个月内使用烟草产品的意愿大于非使用者（调整后的优势比[OR] = 6.970，95%置信区间[CI] = 4.474%至 10.857%），并且更有可能表示他们会喜欢吸烟（调整后的 OR = 14.633，95% CI = 11.328%至 18.902%）。电子烟的使用与之前尝试过吸烟（OR = 3.2）、过去 30 天内注意到烟草广告（OR = 2.7）、有吸烟的亲密朋友（OR = 1.4）以及认为烟草有助于人们在社交场合感觉更舒适（OR = 3.3）和使年轻人看起来更有吸引力（OR = 1.3）有关。
中国青少年电子烟使用仍然较低，但知晓率较高。电子烟的使用与增加使用烟草的意愿有关。需要加强针对青少年电子烟使用的预防措施。
本研究是中国首次全国代表性的青少年电子烟使用调查。研究发现，在中学生中，电子烟使用率为 1.2%，电子烟知晓率为 45.0%。中国青少年将电子烟作为一种烟草产品而非戒烟辅助工具。在从未吸烟者中，电子烟使用者在未来 12 个月内使用烟草产品的意愿大于非使用者，更有可能使用其最好的朋友提供的烟草产品并喜欢吸烟，而不是非使用者。
