• The truth is that there are at least 10 published studies that examined the health effects of electronic cigarettes. And this doesn't even include the more than 20 studies in which the chemical constituents of electronic cigarette liquids or vapor have been analyzed using gas chromatography/mass spectrometry.

It should be clear to readers that this study was poorly designed toinvestigate the efficacy of electronic cigarettes. The study systematicallysampled a group of quitline callers who were unsuccessful using electroniccigarettes. These people tried and failed using electronic cigarettes. How dowe know they failed? Because they wouldn’t have had to call the quitline ifthey weren’t still smoking. This is clearly a harder core group of smokers andit is no surprise that their cessation rates were lower after 6-months than thecomparison group. The study tells us nothing about the effectiveness ofelectronic cigarettes, other than that they do not work for everyone. In fact, this research is biased in favor of not finding aneffect of electronic cigarettes on smoking cessation.

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