While there have been a growing number of good e-cig studies in peer-reviewed journals, to my knowledge none of them have been published in one with as high an impact value as The Lancet, the UK's premiere medical journal.
http://press.thelancet.com/ecigarettes.pdf
Unfortunately, the results aren't as spectacular as we might have hoped. The randomized control trial followed 657 people, randomly placed into either a 16mg nicotine e-cig group, a nicotine patch control group, or a zero-nicotine placebo e-cig group, and found that after 6 months 7.3% of the nicotine e-cig group had quit smoking, compared to 5.8% of the patch users and only 4.1% of the placebo e-cig users. That's a modest improvement, but other studies have shown much greater promise. Still, it is a positive result, and science is not built on any one study alone, but on the aggregate data from multiple studies on the same question.
http://press.thelancet.com/ecigarettes.pdf
Unfortunately, the results aren't as spectacular as we might have hoped. The randomized control trial followed 657 people, randomly placed into either a 16mg nicotine e-cig group, a nicotine patch control group, or a zero-nicotine placebo e-cig group, and found that after 6 months 7.3% of the nicotine e-cig group had quit smoking, compared to 5.8% of the patch users and only 4.1% of the placebo e-cig users. That's a modest improvement, but other studies have shown much greater promise. Still, it is a positive result, and science is not built on any one study alone, but on the aggregate data from multiple studies on the same question.
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