Dr. Foulds and colleagues developed a 10-question scale to assess nicotine dependence and administered it to a sample of 2,368 current electronic cigarette users. Subjects were asked to fill out the scale to assess the level of their addiction while smoking, and then again to assess the level of their current addiction using electronic cigarettes.

In addition, the authors concluded that: thirdhand smoke exposure among children causes "multiple short-term and longer health problems, many of which maynot manifest fully until later in life."

According to an ABC News :

I believe that such a modified, randomized clinical study is essential to add another line of evidence with which to evaluate the potential benefits of electronic cigarettes. Yes, there are limitations to RCTs, but it makes no sense to throw out the baby with the bath water.

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