The study involves a survey of 949 adult smokers who were interviewed at baseline in 2011 and followed up one year later. Of these smokers, at baseline, 88 had tried electronic cigarettes in the past month (that is, they had used electronic cigarettes at least once).

The problem with what Dr. Glantz has done is that he is already disseminating the "answer" to this important research question without having actually done the research. That obviates the need to do the research because it is too late. The answer has already been disseminated, and it is going to affect important public policy as well as clinical decisions.

What it means is that the ERS would rather that a smoker who cannot quit using other means continue smoking than switch to electronic cigarettes. The ERS clearly states that it opposes the use of electronic cigarettes, period. Thus, it implies that it opposes the use of electronic cigarettes by a smoker who is unable to quit via any other smoking cessation method. For such an individual, the ERS statement implies that it would actually prefer the smoker to continue smoking than to quit via the use of electronic cigarettes.

One of my first assignments at the Office on Smoking and Health at CDC was to evaluate the evidence regarding the relationship between changes in tar yield of cigarettes and the risk of lung cancer. I examined the literature regarding both the introduction of the filter and other design changes that subsequently led to very low tar yields. My conclusion was that the filter itself produced a massive decline in tar yields, so great that even with smoker compensation, the lung cancer risk declined. However, further declines in tar yields were apparently not sufficient to overcome compensation, and lung cancer risks did not decline any further. Thus, my conclusion was that the filter produced small but measurable declines in lung cancer risk, but low-tar cigarettes within the filtered cigarette category conveyed no decrease in lung cancer risk.

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