Changes in Electronic Cigarette Use Among Adults in the United States, 2014-2016

Abstract
Electronic cigarettes (e-cigarettes) are widely marketed as a tool for smoking cessation and a safer alternative to conventional cigarettes. However, the efficacy of e-cigarettes for successful smoking cessation is inconclusive.1,2 Previous studies have reported a rapid increase in the prevalence of e-cigarette use among US adults since 2010.3-5 We analyzed new national survey data to estimate the changes in e-cigarette use among US adults in 2014-2016.