Cannabis Use and Misuse Following Recreational Cannabis Legalization.

ABSTRACT:

Importance

An increasing number of jurisdictions have legalized recreational cannabis for adults, but most evaluations have used repeated cross-sectional designs, preventing examination of within-person and subgroup trajectories across legalization.

Objective

To examine changes in cannabis use and misuse in the 5 years following legalization in Canada both overall and by prelegalization cannabis use frequency using a longitudinal design.

Design, setting, and participants

This prospective cohort study included data from community-dwelling adults who participated in up to 11 biannual assessments from September 2018 to October 2023 in Ontario, Canada. Data were analyzed from November 2023 to January 2024.

Exposure

Five years of recreational cannabis legalization (

SUBMITTER: McDonald AJ 

PROVIDER: S-EPMC12019528 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature