Journal Scan Summary
Title: | A Longitudinal Analysis of Electronic Cigarette Use and Smoking Cessation |
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Date Posted: | March 24, 2014 |
Authors: | Grana RA, Popova L, Ling PM. |
Citation: | JAMA Intern Med 2014;Mar 24:[Epub ahead of print]. |
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Study Question:
Do electronic cigarettes (e-cigarettes) improve smoking cessation rates compared to other methods or placebo?Methods:
This research letter describes data on e-cigarette use in association with quit rates. Participants from the Knowledge Networks who completed a baseline survey in November 2011 and were self-identified current smokers were included in this analysis. Follow-up was conducted through November 2012. A total of 1,549 participants completed the survey in 2011, of which 1,189 were current smokers; 81.3% completed the follow-up survey. An additional 240 provided nonsensical data and were excluded. Baseline e-cigarette (in the prior 30 days) use was measured with the yes or no question. Cigarettes used per day (continuous variable), time to first cigaretteResults:
Conclusions:The investigators concluded that e-cigarette use by smokers was not followed by greater rates of quitting or by reduction in cigarette consumption 1 year later. Regulations should prohibit advertising claiming or suggesting that e-cigarettes are effective smoking cessation devices until claims are supported by scientific evidence.
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