We assessed trends in use of electronic cigarettes among U.S. adults, demographic predictors of use, and smoking status of current electronic cigarette users.
Published: 22 September 2014
Link to publication: http://ntr.oxfordjournals.org/content/early/2014/11/06/ntr.ntu213.abstract
Robert C. McMillen, PhD
Mark A. Gottlieb, JD
Regina M. Whitmore Shaefer, MPH
Jonathan P. Winickoff, MD, MPH
Jonathan D. Klein, MD, MPH
Methods: Mixed-mode surveys were used to obtain representative, cross-sectional samples of U.S. adults in each of 4 years.
Results: Sample sizes for 2010, 2011, 2012, and 2013 were 3,240, 3,097, 3,101, and 3,245, respectively. Ever use of electronic cigarettes increased from 1.8% (2010) to 13.0% (2013), while current use increased from 0.3% to 6.8%, p < .001. Prevalence of use increased significantly across all demographic groups. In 2013, current use among young adults 18–24 (14.2%) was higher than adults 25–44 (8.6%), 45–64 (5.5%), and 65+ (1.2%). Daily smokers (30.3%) and nondaily smokers (34.1%) were the most likely to currently use e-cigarettes, compared to former smokers (5.4%) and never-smokers (1.4%), p < .001. However, 32.5% of current electronic cigarette users are never- or former smokers.
There has been rapid growth in ever and current electronic cigarette use over the past 4 years. Use is highest among young adults and current cigarette smokers. Although smokers are most likely to use these products, almost a third of current users are nonsmokers, suggesting that e-cigarettes contribute to primary nicotine addiction and to renormalization of tobacco use. Regulatory action is needed at the federal, state, and local levels to ensure that these products do not contribute to preventable chronic disease.
The « nonsmokers » in the sentence « almost a third of current users are nonsmokers, suggesting that e-cigarettes contribute to primary nicotine addiction and to renormalization of tobacco use » considers ex-smokers, who stopped smoking by using vape, as non-smokers. Never smokers using vape is 1.4%. The rest thus is composed of ex-smokers.
This means that the conclusion is completely biased.