What differentiates teenage users of electronic cigarettes from users of tobacco products?

Electronic cigarettes (e-cigarettes), sold since 2010 in many countries including France, have become widely used among adults, particularly by older smokers trying to quit or decrease tobacco use. E-cigarettes are also getting popular among adolescents. Yet, factors associated with e-cigarettes use among youth are not well known. The objective of this study is to compare characteristics of adolescents who are exclusive e-cigarettes to those who...