title: E-cigarette use in Canada: prevalence and patterns of use in a regulated market.
abstract: OBJECTIVE
  Canada is among the few countries in which e-cigarettes containing nicotine are prohibited. To date, there is little evidence on the prevalence and patterns of use of e-cigarettes in markets with product bans. The current study examines e-cigarette use among a sample of non-smokers and smokers in Canada.
  
  
  METHODS
  Online cross-sectional survey.
  
  
  METHODS
  Conducted in October 2013 using a commercial panel of Canadians from Global Market Insite, Inc (GMI).
  
  
  METHODS
  In total, 1095 Canadians were included in the analysis: 311 non-smokers aged 16-24 years (younger non-smokers), 323 smokers aged 16-24 years (younger smokers) and 461 smokers 25 years and older (older smokers).
  
  
  METHODS
  E-cigarette ever and current use, types of products used, and reasons for use.
  
  
  RESULTS
  Approximately 79% of younger non-smokers, 82% of younger smokers and 81% of older smokers were aware of e-cigarettes. Ever trial of e-cigarettes was reported by 10% of younger non-smokers, 42% of younger smokers and 27% of older smokers. Moreover, current use of an e-cigarette, which was defined as use in the last 30 days, was reported by 0.3% of younger non-smokers, 18% of younger smokers and 10% of older smokers. Among those who had ever tried an e-cigarette, approximately 10% of younger non-smokers, 46% of younger smokers and 43% of older smokers reported trying an e-cigarette that contained nicotine. The most popular e-cigarette flavours were fruit followed by menthol, and the most common reason for using e-cigarettes was to help them quit smoking.
  
  
  CONCLUSIONS
  In the context of previous research, it appears that the prevalence of e-cigarette trial has increased in Canada. Although a considerable proportion of non-smokers have tried e-cigarettes, current use is almost entirely concentrated among smokers. Further research should be conducted to monitor e-cigarette use by Canadians.
authors: School of Public Health & Health Systems, University of Waterloo, Waterloo, Ontario, Canada.
authors: Samantha
authors: S
authors: Shiplo
authors: School of Public Health & Health Systems, University of Waterloo, Waterloo, Ontario, Canada.
authors: Christine D
authors: CD
authors: Czoli
authors: School of Public Health & Health Systems, University of Waterloo, Waterloo, Ontario, Canada.
authors: David
authors: D
authors: Hammond
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002170:Canada / Q000453:epidemiology; D003430:Cross-Sectional Studies; D004522:Educational Status; D066300:Electronic Nicotine Delivery Systems / Q000706:statistics & numerical data*; D005006:Ethnicity; D005260:Female; D006801:Humans; D008297:Male; D040541:Marketing; D015995:Prevalence; D012737:Sex Factors; D055815:Young Adult
keywords: PREVENTIVE MEDICINE; PUBLIC HEALTH