Marijuana use trends among college students in states with and without legalization of recreational use: initial and longer‐term changes from 2008 to 2018

Background and aims Young adult college students in the United States are likely to be affected by marijuana liberalization trends. However, changes in students’ marijuana use following recreational marijuana legalization (RML) have not been examined in more than one RML state at a time, or beyond 1–2 years post‐legalization. Design Cross‐sectional National College Health Assessment survey administered twice yearly from 2008 to 2018. Setting A...