Electronic Cigarette Use Prevalence, Associated Factors, and Pattern by Cigarette Smoking Status in the United States From NHANES (National Health and Nutrition Examination Survey) 2013-2014

Background To examine the prevalence and patterns of recent electronic cigarette (e‐cigarette) use in a nationally representative sample of US adults and adolescents. Methods and Results Using tobacco information from NHANES (National Health and Nutrition Examination Survey) 2013–2014, 5423 adults and 895 adolescents (aged 13–17 years) were included in this analysis. Demographic, tobacco use, and drug use information were self‐reported. Recent e‐cigarette use (within the previous 5 days) was stratified by smoking status. Of 125 e‐cigarette users, 116 participants were aged ≥18 years, corresponding to 2.6% (95% confidence interval [CI], 2.0–3.1) and 1.21% (95% CI, 0.3–2.1) prevalence of e‐cigarette use among US adults and adolescents, respectively. E‐cigarette adult users were current smokers (68.1%), former smokers (23.7%), and never smokers (8.2%). The highest prevalence of e‐cigarette use was among current smokers (8.2%; 95% CI, 6.3–10.1), followed by former smokers (2.7%; 95% CI, 1.4–4.1), and then nev...