Time Trends in Cannabis Use, Cannabis Use Disorder and Psychiatric Comorbidity: Individual and State-Level Influences

Over the last two decades, the cannabis landscape in the U.S. has changed considerably. Legalization, product potency and commercialization have increased while perceived risk has declined. In this context, national increases in cannabis use and cannabis use disorder will be reviewed, including particular subgroups in which the increases have been disproportionately large, e.g., individuals with pain and with psychiatric disorders, including psychosis.

Learning objectives:

• To be able to describe time trends in the prevalence of cannabis use and cannabis use disorder;
• To be able to describe the influence of state-level legalization of cannabis on rates of cannabis use and cannabis use disorder;
• To be able to describe sub-groups of the population at particular risk for increases in cannabis use and cannabis use disorder, and some potential explanations of these differences.