The degree to which electronic cigarettes stimulate or depress overall interest in quitting is a separate and empirically answerable question. In fact, evidence from the UK indicates that the spread of electronic cigarettes has been associated with a in the desire to quit smoking at a population level.

The study enrolled 1,074 patients with cancer who were smokers and were therefore referred to a tobacco treatment program at a comprehensive cancer center during the years 2012 and 2013. Smoking status, nicotine dependence, and e-cigarette use was assessed at baseline and the patients were followed for six-month. The primary outcome was smoking cessation, measured as seven-day abstinence at follow-up.

Overall, ASH reported that "98% of children who have never smoked have never even tried an electronic cigarette."

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