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.

If we accept that authors' word - that there is no way from this study to exclude the possibility that youths are initiating smoking with conventional cigarettes and then moving on to e-cigarettes - then it follows that these authors are being dishonest in telling the public that the study shows that:

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