no evidence for e-cigarettes to help smokers to quit tobacco

Before accepting the claim that e-cigarettes are a useful “harm reduction” for smokers, and useful as smoking cessation devices it is necessary to examine the evidence.

A recent longitudinal study published in JAMA reported that e-cigarette users had no difference in odds of quitting at a year than other smokers (odds ratio 0.71, P=0.35).

Do e-cigarette users smoke less than those who do not “vape”? This study found no difference in cigarettes smoked.

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