Electronic cigarette use and smoking initiation in adolescents and young adults: evidence synthesis

Objective: this study aimed to synthesize evidence about electronic cigarette use by adolescents and young adults and future conventional cigarette smoking. Methods: the search for evidence was carried out in the following databases: PubMed, EMBASE, LILACS, Cochrane Library, Health System Evidence and BIREME for the structured question. Results: The use of electronic cigarettes by adolescents and young adults is a risk factor for smoking initiation in adulthood with odds ratio OR 5.69 (CI 4.82-6.71). Conclusion: The evidence can be used to maintain the ban on selling, importing, and advertising electronic smoking devices in Brazil.