E-cigarette use in the past and quitting behavior in the future: A population-based study

W.K. Al-Delaimy, M.G. Myers, E.C. Leas, D.R. Strong and C.R. Hofstetter

American Journal of Public Health, 2015, vol. 105, issue 6, 1213-1219

Abstract: Objectives. We examined whether smokers who used e-cigarettes are more likely to quit after 1 year than smokers who had never used e-cigarettes. Methods. We surveyed California smokers (n = 1000) at 2 time points 1 year apart. We conducted logistic regression analyses to determine whether history of e-cigarette use at baseline predicted quitting behavior at follow-up, adjusting for demographics and smoking behavior at baseline. We limited analyses to smokers who reported consistent e-cigarette behavior at baseline and follow-up. Results. Compared with smokers who never used e-cigarettes, smokers who ever used e-cigarettes were significantly less likely to decrease cigarette consumption (odds ratio [OR] = 0.51; 95% confidence interval [CI] = 0.30, 0.87), and significantly less likely to quit for 30 days or more at follow-up (OR = 0.41; 95% CI = 0.18, 0.93). Ever-users of e-cigarettes were more likely to report a quit attempt, although this was not statistically significant (OR = 1.15; 95% CI = 0.67, 1.97). Conclusions. Smokers who have used e-cigarettes may be at increased risk for not being able to quit smoking. These findings, which need to be confirmed by longer-term cohort studies, have important policy and regulation implications regarding the use of e-cigarettes among smokers. © 2015, American Public Health Association Inc. All rights reserved.

Keywords: electronic cigarette, adolescent; adult; cross-sectional study; female; human; interview; longitudinal study; male; middle aged; risk; smoking cessation; United States; utilization, Adolescent; Adult; California; Cross-Sectional Studies; Electronic Cigarettes; Female; Humans; Interviews as Topic; Longitudinal Studies; Male; Middle Aged; Risk; Smoking Cessation (search for similar items in EconPapers)
Date: 2015
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Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:aph:ajpbhl:10.2105/ajph.2014.302482_2

DOI: 10.2105/AJPH.2014.302482

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