Cannabis use within the United States: Prevalence of cannabis use by state legal status and perceptions of benefit and harm

Abstract Background: Cannabis use has increased in the United States as legalization has spread. While Δ-9 THC remains the most-used federally illegal substance, use of other psychoactive hemp-derived products (Δ-8 THC, Δ-10 THC, HHC, THC-O) has grown. The current study investigated patterns of cannabis use and perceptions of harm and benefit of cannabis across states with differing cannabis laws. Method: Participants (N = 639) were adults endorsing past-90-day cannabis use who lived in one of 15 states selected based on