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Trends in Adolescent Cannabis-Related Hospitalizations by State Legalization Laws, 2008–2019

Published:September 09, 2021DOI:https://doi.org/10.1016/j.jadohealth.2021.07.028

      Abstract

      Purpose

      Adolescent cannabis use is associated with adverse health outcomes. The impact of cannabis legalization on adolescent cannabis-related hospitalizations remains unknown. We sought to assess whether state cannabis legalization is associated with adolescent cannabis-related hospitalizations.

      Methods

      We conducted a retrospective cohort study of adolescent (11–17 years) hospitalizations at children’s hospitals between January 1, 2008 and December 31, 2019 using the Inpatient Essentials database. We investigated differences in adolescent cannabis-related diagnosis during a hospitalization by state cannabis legalization status, including states with no legal use to medical cannabis laws (MCLs) and states with MCLs to nonmedical (>21 years old) cannabis laws (NMCLs).

      Results

      Of 1,898,432 adolescent hospitalizations in 18 states and Washington, DC, there were 37,562 (2%) hospitalizations with a cannabis-related diagnosis, with 8,457 (23%) in states with no legal use, 20,444 (54%) in MCL states, and 8,661 (23%) in NMCL states. There was an increase in adjusted odds of a cannabis-related hospitalization in MCL (odds ratio 1.05, 95% confidence interval 1.04–1.06) and NMCL states (odds ratio 1.03, 95% confidence interval 1.02–1.03) between 2008 and 2019. Characteristics associated with the greatest increase in adjusted odds of a cannabis-related hospitalization postpolicy change included adolescents without an underlying mental health or other substance use disorder in MCL and NMCL states (p < .001) and younger age in NMCL states (13 vs. 16 and 17 years old, p = .02 and p = .02).

      Conclusions

      Cannabis-related adolescent hospitalizations at children’s hospitals are increasing, with a disproportionate increase postlegalization in states with NMCLs. Interventions are warranted to increase cannabis use identification and treatment among at-risk adolescents in the hospital-based setting.

      Keywords

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      Linked Article

      • Contextualizing Cannabis Legalization Outcomes
        Journal of Adolescent HealthVol. 69Issue 6
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          Cannabis (“marijuana”) has a long history of legality and prohibition in the United States. However, it has been federally illegal since the 1970s Controlled Substances Act. The Controlled Substances Act currently categorizes cannabis as a schedule I substance, the most restrictive schedule, quantifying cannabis on par with heroin and indicating a high potential for abuse, no currently accepted medicinal use, and lack of safety for use under medical supervision [1].
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