e-Cigarette Use Tied to Tobacco Use in Teenagers
Source: www.Medscape.comAuthor: Diana Swift e-Cigarette smoking appears to promote progression to traditional cigarette smoking and may be helping form a new population of smokers, according to a prospective study published online September 8 in JAMA Pediatrics. Brian A. Primack, MD, PhD, from the Division of General Internal Medicine, University of Pittsburgh School of Medicine in Pennsylvania, and colleagues analyzed data on 694 young nonsmokers who were attitudinally nonsusceptible to smoking at baseline. The very small proportion (2.3%) who already used e-cigarettes at baseline proved more likely to progress to smoking or to being open to it. The cohort, which was more than 75% non-Hispanic white, consisted of 374 females. The mean age of the 16 baseline e-cigarette users was 19.5 years compared with 20 years for nonusers. Study data came from waves 2 and 3 of the US-based Dartmouth Media, Advertising, and Health Study, a national survey of adolescents and young adults aged 16 to 26 years who were recruited via random digit dialing using landline (66.7%) and cellular (33.3%) telephone numbers. The survey, conducted from October 1, 2012, to May 1, 2014, started tracking e-cigarette use at wave 2 (2012 - 2013), which served as the baseline, whereas wave 3 (2013 - 2014) served as follow-up for the current study. Eligible participants had to be never-smokers and attitudinally nonsusceptible to smoking at baseline. This was assessed with these questions: "If one of your friends offered you a cigarette, would you try it?" and "Do you think you will smoke a [...]