According to a issued by Columbia University Medical Center, a team of researchers from Columbia University have concluded that electronic cigarettes may serve as a gateway not only to cigarette smoking, but also to illicit drug use and addiction, such as cocaine addiction.

Were I a reviewer of this grant, I certainly would not have funded it. Instead, I would have saved the money and encouraged the researchers to publish their pre-determined conclusions without wasting taxpayer dollars to pretend to be searching for an answer to a question that they have already answered.

The truth is that there are major advantages and disadvantages of both surveys and clinical trials to examine the potential benefits of electronic cigarettes. Both types of study designs have inherent biases which can produce results that are more "favorable" or "unfavorable." This is why the methodology of published research needs to be examined so carefully. It is not so simple as to dismiss RCT evidence and accept survey evidence. One needs to consider the strengths and limitations inherent in both approaches. And at the end of the day, the only defensible approach, I believe, is that both types of studies are necessary, and we must carefully interpret and synthesize the findings from studies of multiple designs, using the totality of the evidence to make final judgments about the benefits of electronic cigarettes.

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