A systematic review on risk factors and reasons for e-cigarette use in adolescents.

Introduction: The aim was to establish EC use risk and protective factors, the reasons for use, associations with tobacco and other substance use, and use for smoking cessation.

Methods: A systematic review following PRISMA guidelines was registered in PROSPERO (CRD42024532771). Searches in Web of Science and PubMed/MEDLINE (March-April 2024) used terms like 'electronic cigarette' and 'adolescents' with a PICO framework.