Lim CCW, Sun T, Leung J, et al. - The findings of epidemiological studies that reported the global prevalence of adolescent cannabis vaping by survey year and school grades are summarized.

• PubMed, PsycINFO, Scopus, and Web of Science yielded 17 studies meeting the eligibility criteria (n = 198,845 adolescents).

• Findings revealed doubling of the lifetime prevalence of cannabis vaping from 2013 to 2020 (6.1% to 13.6%), doubling of past 12-month use from 2017 to 2020 (7.2% to 13.2%), and increase in the 30-day prevalence of cannabis vaping 7-fold from 2013 to 2020 (1.6% to 8.4%).

• There may be a shift in preference for cannabis products from dried herb to cannabis oil.

• Overall, there is a necessity for more effective prevention and response measures to mitigate the rising prevalence of cannabis vaping among adolescents.