Electronic nicotine delivery systems (ENDS) initially emerged in 2003 and have since
become widely available globally, particularly over the Internet.
Data on ENDS usage patterns are limited. The current paper examines patterns of ENDS
awareness, use, and product-associated beliefs among current and former smokers in
Data come from Wave 8 of the International Tobacco Control Four-Country Survey, collected
July 2010 to June 2011 and analyzed through June 2012. Respondents included 5939 current
and former smokers in Canada (n=1581); the U.S. (n=1520); the United Kingdom (UK;
n=1325); and Australia (n=1513).
Overall, 46.6% were aware of ENDS (U.S.: 73%, UK: 54%, Canada: 40%, Australia: 20%);
7.6% had tried ENDS (16% of those aware of ENDS); and 2.9% were current users (39%
of triers). Awareness of ENDS was higher among younger, non-minority smokers with
higher incomes who were heavier smokers. Prevalence of trying ENDS was higher among
younger, nondaily smokers with a high income and among those who perceived ENDS as
less harmful than traditional cigarettes. Current use was higher among both nondaily
and heavy (≥20 cigarettes per day) smokers. In all, 79.8% reported using ENDS because
they were considered less harmful than traditional cigarettes; 75.4% stated that they
used ENDS to help them reduce their smoking; and 85.1% reported using ENDS to help
them quit smoking.
Awareness of ENDS is high, especially in countries where they are legal (i.e., the
U.S. and UK). Because trial was associated with nondaily smoking and a desire to quit
smoking, ENDS may have the potential to serve as a cessation aid.
Copyright © 2013 American Journal of Preventive Medicine. Published by Elsevier Inc.
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