Changes in e-cigarette use, cigarette smoking, and dual use among the youth (13-15 years) in 10 countries (2013-2019) - analyses of Global Youth Tobacco Surveys (GYTS).

Secondary data analyses of serial Global Youth Tobacco Surveys in 10 countries showed that both awareness of e-cigarette and e-cigarette use has increased among school-going youth aged 13-15 years. A concurrent increase in 'dual use' of e-cigarettes and cigarette smoking during the last 30 days in all 10 countries indicates continued cigarette smoking in the absence of e-cigarettes due to the common risk construct of tobacco product use. Results call for continued surveillance of both e-cigarettes and cigarette smoking among school-going youth. Comprehensive tobacco control measures inclusive of e-cigarettes should be implemented to reduce tobacco use among the youth.