To illustrate how inappropriate the use of these studies are to draw conclusions about the effectiveness of e-cigarettes for smoking cessation, let's look at two of these studies:

"while we have heard from some former smokers who say e-cigarettes helped them quit, there is not yet any conclusive scientific evidence that e-cigarettes can work as a cessation aid."

The Marini study demonstrates that electronic cigarettes do lead to a reduction in exhaled nitric oxide, which suggests that they have a mild respiratory irritant effect and induce some inflammation in the airways. This is a finding which has been reported previously in a number of studies. It is not surprising because propylene glycol is known to be a mild respiratory irritant.

While neither of the researchers could be reached for comment, sources familiar with their work told the Rest of the Story that these authors do not feel their historical funding by Big Tobacco and consulting for Big Tobacco needs to be disclosed because it occurred more than 36 months ago.

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