Reid Jessica L, Rynard Vicki L, Czoli Christine D, Hammond David
Propel Centre for Population Health Impact, University of Waterloo, 200 University Ave. W., Waterloo, ON, Canada, N2L 3G1.
School of Public Health & Health Systems, University of Waterloo, 200 University Ave. W., Waterloo, ON, Canada, N2L 3G1.
Prev Med. 2015 Dec;81:180-3. doi: 10.1016/j.ypmed.2015.08.019. Epub 2015 Sep 5.
The current study examined prevalence and correlates of electronic cigarette (e-cigarette) use in the Canadian population, using data from the nationally representative 2013 Canadian Tobacco, Alcohol and Drugs Survey (n=14,565). Sociodemographic correlates of e-cigarette use (ever, and in the past 30 days) were examined using logistic regression models. Overall, 8.5% of Canadians aged 15 and older reported having ever tried an e-cigarette; 1.8% had used one in the past 30 days. E-cigarette use was particularly high among smokers and young people. Overall, prevalence did not differ between males and females, for ever (P=0.24) or past 30-day use (P=0.30). Smoking status was the strongest correlate of e-cigarette use (ever and in the past 30 days, P<0.0001): 37.3% of current smokers had ever tried an e-cigarette (9.6% used in the past 30 days), compared to 3.0% of never-smokers (0.3% past 30-days), and 5.1% of former smokers (0.9% past 30-day). E-cigarette use also varied by age (P<0.0001): prevalence was highest among youth aged 15-19 (19.8% ever; 2.6% past 30-day) and young adults aged 20-24 (20.1% ever; 3.9% past 30-day), and decreased with age. Among youth, the majority of e-cigarette users were never-smokers, while the majority of adult users were smokers. In Canada, e-cigarette use is particularly high among smokers and young people. Dual use with cigarettes was common, with most e-cigarette users also smoking conventional cigarettes. Continued monitoring of e-cigarette use and its relationship with smoking should be a priority, given the rapidly-evolving e-cigarette market and implementation of new policy measures.
本研究利用具有全国代表性的2013年加拿大烟草、酒精和药物调查（n = 14565）的数据，调查了加拿大人群中电子烟使用的流行情况及其相关因素。使用逻辑回归模型研究了电子烟使用（曾经使用过以及过去30天内使用过）的社会人口学相关因素。总体而言，15岁及以上的加拿大人中有8.5%报告曾尝试过电子烟；1.8%在过去30天内使用过电子烟。电子烟在吸烟者和年轻人中使用尤为普遍。总体而言，曾经使用过电子烟（P = 0.24）或过去30天内使用过电子烟（P = 0.30）的情况在男性和女性之间没有差异。吸烟状况是与电子烟使用（曾经使用过以及过去30天内使用过）最密切相关的因素（P < 0.0001）：37.3%的当前吸烟者曾尝试过电子烟（9.6%在过去30天内使用过），相比之下，从不吸烟者中有3.0%（过去30天内为0.3%），曾经吸烟者中有5.1%（过去30天内为0.9%）。电子烟的使用也因年龄而异（P < 0.0001）：在15 - 19岁的青少年（曾经使用过的比例为19.8%；过去30天内为2.6%）和20 - 24岁的年轻人（曾经使用过的比例为20.1%；过去30天内为3.9%）中流行率最高，且随年龄增长而下降。在青少年中，大多数电子烟使用者从不吸烟，而大多数成年使用者是吸烟者。在加拿大，电子烟在吸烟者和年轻人中使用尤为普遍。电子烟与香烟的双重使用很常见，大多数电子烟使用者也吸传统香烟。鉴于电子烟市场迅速发展以及新政策措施的实施，持续监测电子烟的使用情况及其与吸烟的关系应成为优先事项。
