Indicators of dependence and efforts to quit vaping and smoking among youth in Canada, England and the USA.
David HammondJessica L ReidVicki L RynardRichard J O'ConnorMaciej Lukasz GoniewiczMegan E PiperMaansi Bansal-TraversPublished in: Tobacco control (2021)
Prevalence of dependence symptoms among young e-cigarette users increased between 2017 and 2019, more so in Canada and the USA compared with England. Dependence symptom prevalence was lower for e-cigarettes than smoking; however, the gap has narrowed over time.