The truth is that the authors of this study did not intend to examine the effectiveness of e-cigarettes for smoking cessation. They have in fact explicitly stated that their results cannot and should not be used to draw conclusions about the effectiveness of e-cigarettes.

Anecdotes are in fact data. Of course, what you do with that data and how you interpret it is affected by the nature of how the data were obtained. But anecdotes are data. Remember, the connection between smoking and lung cancer itself was first uncovered by a case series. Physicians started to note multiple cases of lung cancer - which was very rare at the time - all occurring in smokers. While these patients could be called "anecdotes," they were also people who provided very real and important data that led to the discovery that smoking causes lung cancer. That connection would not have been found had these "anecdotes" been dismissed.

This research violates basic ethical standards of informed consent for two reasons:

A second major advantage of a clinical trial is that it can examine the potential effectiveness of interventions in which the use of a product is promoted for use among smokers who are interested in quitting. A survey cannot do this, because it can only examine the use of products under current conditions. It provides no information on what would happen if the product was actively promoted to a group of smokers, as it is in a clinical trial.

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