Prevalence of current e-cigarette use decreased among all U.S. adults between 2014 and 2016. Dr. Dai from the University of Nebraska Medical Center and Dr. Leventhal from University of Southern California Keck School of Medicine, in a study titled “Prevalence of e-Cigarette Use Among Adults in the United States, 2014-2018” published in the current issue of JAMA, examined 2014-2018 trends and the 2017-2018 biannual change in prevalence of e-cigarette use in U.S. adults of different ages. The authors also looked at e-cigarette use trends by sociodemographic and smoking status among young adults. They used 2014-2018 National Health Interview Surveys, with a pooled sample of 155,556 respondents.
Drs. Dai and Leventhal found that over 2014-2018, prevalence of reported current and daily e-cigarette use increased among U.S. young adults, but declined or remained stable in older age groups. The 46.2 percent increase (5.2 percent to 7.6 percent) in current e-cigarette use from 2017-2018 among young adults paralleled concurrent 48.5 percent and 77.8 percent increases in U.S. middle and high school students, respectively. Sales of pod-mod–style e-cigarette products with high nicotine concentrations and appealing flavors increased during 2017-2018. Increasing e-cigarette use by young adults may be explained by increasing use of pod-mod products by young adults.
E-cigarette use increased in most young adult demographic and smoking subgroups, including never smokers, from 2014-2018. The authors indicate that 2017-2018 biannual increases were observed only among subpopulations, such as men and former smokers, and merits further research.Friday Letter Submission, Publish on November 22