In the above analyses, the authors controlled for level of nicotine dependence.

The Rest of the Story

Senator Dick Durbin stated that: "the use of e-cigarettes among our nation's kids is ... closely linked to the deadly use of cigarettes."

Disclosure: I have not received any funding or compensation from the tobacco, electronic cigarette, or pharmaceutical industries. However, I am seeking funding from several electronic cigarette companies to conduct a behavioral study on the effects of electronic cigarettes on smoking behavior.

Regarding the engagement of Facebook users in research, Facebook's states the following:

Despite the tremendous proliferation of e-cigarette experimentation among youth, with a doubling of use from 2011 to 2012 alone, the CDC data show that youth smoking prevalence (among high school students) fell dramatically, from 18.1% in 2011 to 15.7% in 2013. This is a 13.3% decline in smoking prevalence over a two-year period. It is also the largest drop in youth smoking prevalence measured by this survey over the past decade.

What Stan does not reveal in his review article is that instead of estimating cessation rates among a cohort of smokers who made quit attempts using these products, the Vickerman study analyzed cessation rates of a large number of smokers who had previously tried to quit using e-cigarettes but failed, and then called a quitline because they had failed and wanted to try again. Then, they compared the quit rate among these smokers to that among smokers without such a history of a failed quit attempt using electronic cigarettes.

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