Factors Associated with E-cigarette Use: A National Population Survey of Current and Former Smokers
Thursday, June 12, 2014
Posted by: Natalia Gromov
Am J Prev Med. 2014 May 21.
Factors Associated with
E-cigarette Use: A National Population Survey of Current and Former Smokers.
Giovenco DP, Lewis MJ,
Few national surveys document the prevalence of e-cigarette use in the U.S. The
existing metric to assess current use likely identifies individuals who have
recently tried an e-cigarette but do not continue to use the product. PURPOSE:
To document the prevalence of e-cigarette ever use, current use, and
established use in a nationally representative survey of current and former
cigarette smokers in the U.S. METHODS: A random sample of current and former
cigarette smokers completed a web-based survey in June 2013 (n=2,136). Data
were analyzed in November 2013. Multivariate logistic regression identified
demographic and smoking-related factors associated with each use category.
RESULTS: Almost half of respondents had tried e-cigarettes (46.8%), but
prevalence of established use remained low (3.8%). Although trial of
e-cigarettes was highest among daily smokers, the odds of being an established
e-cigarette user were greater for former smokers (OR=3.24, 95% CI=1.13, 9.30,
p<0.05). Furthermore, e-cigarette preference and use patterns varied among
ever, current, and established users. Established users reported using
rechargeable e-cigarettes, having a regular brand, and using e-cigarettes at
home and in the workplace at much higher levels than the "current use"
metric captures. CONCLUSIONS: Improved survey measures for e-cigarette use are
needed. The identification of established e-cigarette users may provide insight
to product features or other individual factors that are associated with
sustained use of e-cigarettes.