Who is using e-cigarettes in Canada? Nationally representative data on the prevalence of e-cigarette use among Canadians
A partir des données d'une enquête portant sur un échantillon réprésentatif de la population canadienne et incluant 14 565 participants, cette étude analyse l'utilisation de la cigarette électronique en fonction de facteurs socio-démographiques (âge, sexe) et du statut tabagique
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 30days, 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.
Preventive Medicine , résumé, 2014