Bottom Line: The use of electronic cigarettes (e-cigarettes) by smokers is not associated with greater rates of quitting cigarettes or reduced cigarette consumption after one year.
Author: Rachel A. Grana, Ph.D., M.P.H., and colleagues from the University California, San Francisco.
Background: E-cigarettes are promoted as smoking cessation tools, but studies of their effectiveness have been unconvincing.
How the Study Was Conducted: The authors analyzed self-reported data from 949 smokers (88 of the smokers used e-cigarettes at baseline) to determine if e-cigarettes were associated with more successful quitting or reduced cigarette consumption.
Results: More women, younger adults and people with less education used e-cigarettes. E-cigarette use at baseline was not associated with quitting one year later or with a change in cigarette consumption. The authors acknowledge the low numbers of e-cigarette users in the study may have limited their ability to detect an association between e-cigarettes use and quitting.
Discussion: "Nonetheless, our data add to the current evidence that e-cigarettes may not increase rates of smoking cessation. Regulations should prohibit advertising claiming or suggesting that e-cigarettes are effective smoking cessation devices until claims are supported by scientific evidence."
Source: The JAMA Network Journals