Physical and mental health outcomes associated with adolescent E-cigarette use

Use of electronic cigarettes (e-cigarette) and other electronic nicotine delivery systems (ENDS) among adolescents has increased dramatically, creating a need for research to examine the consequences of e-cigarette use on adolescent health. Given the emergent state of the research literature, this integrative review sought to summarize what is currently known about the physical and mental health outcomes associated with e-cigarette use in an adolescent population, and to identify directions for future research.The methodology for this integrative review was based on the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines. A methodical search was conducted in February 2020 in PubMed, CINAHL, and Web of Science databases. To be eligible for inclusion, studies had to address e-cigarette use, have samples that were between 13 and 24 years of age, be published in a peer-reviewed journal, and examine health outcomes associated with e-cigarette use. After the screening process, 18 studies were included.Physical health outcomes associated with e-cigarette use included oral health and respiratory problems as well as nicotine dependence. Mental health outcomes included depression and suicidal ideation. In studies that compared e-cigarette use to conventional cigarette use and non-use, e-cigarettes tended to be associated with more problems than non-use, but fewer problems than conventional cigarette use. Dual use, that is, use of both conventional cigarettes and e-cigarettes, was associated with the greatest harm.Although somewhat less harmful than conventional cigarettes, e-cigarette use is related to a variety of negative physical and mental health outcomes among adolescent users.