Measuring e-cigarette addiction among adolescents.
Erin A VogelJudith J ProchaskaMark L RubinsteinPublished in: Tobacco control (2019)
Adolescents' reports of frequency of e-cigarette use and degree of addiction correlated significantly with cotinine as a biomarker of nicotine exposure. We recommend the EASI and days per month as brief general measures. SPM and the ECDI are more extensive measures that may yield a more nuanced understanding of use.