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Home > Associations between dual use of e-cigarettes and smoking cessation: a prospective study of smokers in England.

Jackson, Sarah E and Shahab, Lion and West, Robert and Brown, Jamie (2019) Associations between dual use of e-cigarettes and smoking cessation: a prospective study of smokers in England. Addictive Behaviors , 103 , (106230) , p. 106230. doi: 10.1016/j.addbeh.2019.106230.

URL: https://www.sciencedirect.com/science/article/pii/...

BACKGROUND: It has been claimed that use of e-cigarettes in combination with cigarettes outside of a quit attempt ('dual use') reduces quitting among smokers. This study aimed to assess whether dual e-cigarette users have lower smoking cessation rates than (i) exclusive cigarette smokers or (ii) dual users of nicotine replacement therapy (NRT) and cigarettes.

METHODS: Prospective cohort study of 1,498 smokers in England. The independent variable was dual use of e-cigarettes (n = 292), dual use of NRT (n = 117), or exclusive smoking (n = 1089), assessed at baseline. Outcomes were overall quit rate, past-year quit attempts, and success of quit attempts at 12-month follow-up. Baseline sociodemographic and smoking-related covariates were included.

RESULTS: Overall quit rates were not lower in dual e-cigarette users than exclusive smokers (OR = 1.31, 0.90-1.89). Dual users of e-cigarettes were more likely than exclusive smokers to make a quit attempt, but this difference was not significant after adjustment for covariates (OR = 1.27, 95%CI 0.95-1.69). Among those attempting to quit, success rates did not differ significantly. Dual users of e-cigarettes were less likely to make a quit attempt than dual users of NRT (OR = 0.61, 95%CI 0.38-0.98) but the success rate of quit attempts and overall quit rates did not differ significantly.

CONCLUSIONS: In England, dual use of e-cigarettes is not associated with reduced overall quit rates compared with exclusive smoking or dual use of NRT. However, dual use of e-cigarettes is associated with a slightly higher quit attempt rate than exclusive smoking but lower than dual use of NRT.


Item Type
Article
Publication Type
International, Open Access, Article
Drug Type
Tobacco / Nicotine
Intervention Type
Harm reduction
Date
30 November 2019
Identification #
doi: 10.1016/j.addbeh.2019.106230
Page Range
p. 106230
Volume
103
Number
106230
EndNote

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