ArticleAddictive behaviors2026
A longitudinal mediated examination of legal, commercial, and individual determinants of cannabis and derived cannabis use behaviors and consequences among US young adults.
Article in Addictive behaviors, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundCannabis and derived intoxicating cannabis product (DICP; e.g., delta-8 tetrahydrocannabinol [THC]) use is increasing, particularly among young adults. We examined how state cannabis and DICP laws and cannabis advertisement exposure impact cannabis/DICP risk perceptions and use motives and how those, in turn, impact cannabis and DICP behaviors (use, frequency, intentions) and consequences.
methodsWe analyzed two waves (2023-2024) of longitudinal survey data among 3,437 US young adults ages 18-34 (∼50 % past-month cannabis use by design). Multivariable regressions assessed direct and indirect associations via parallel mediation.
resultsParticipants in states with legal (vs. illegal) non-medical cannabis had lower DICP use motives, higher odds of cannabis-only use (vs. neither or both), and used cannabis more frequently; associations with use behaviors were mediated by cannabis/DICP motives and risk perceptions. More restrictive delta-8 THC laws were associated with higher odds of cannabis-only use (vs. neither or both). More digital cannabis ad exposure and less exposure to traditional/store-based ads were associated with lower risk perceptions and higher use motives, odds of cannabis/DICP use, use intentions, and consequences; associations were mediated by cannabis/DICP use motives and/or risk perceptions. Lower cannabis/DICP risk perceptions and higher use motives were associated with higher odds of using each respective substance, co-use, and intentions. Using cannabis/DICPs more frequently was associated with experiencing more cannabis consequences; cannabis/DICP frequency mediated associations of cannabis state laws, advertising exposure, and motives with cannabis consequences.
conclusionsThese pathways underscore how laws and marketing shape use, supporting interventions targeting risk perceptions and motives to reduce harm.
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