ArticleJournal of cannabis research2025
Childhood events as factors in continued cannabis use in adulthood: a longitudinal study of a 30-year follow-up cohort.
Article in Journal of cannabis research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Co-RESPOND: a federated network of cohorts on mental health and adversity during the COVID-19 pandemic. Challenges, solutions and recommendations for retrospective data harmonization.European journal of psychotraumatology · 2025Observational
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Authors and funding
6 authors.
Funding
Abstract
backgroundCannabis use patterns have evolved over time, with increasing persistence into adulthood. This study aims to identify cannabis use trajectories from adolescence to adulthood and to examine the influence of early individual and family factors on these trajectories.
methodsThis study included 622 participants from the French TEMPO cohort who reported cannabis use between 1999 and 2021, based on 14 measurements points. Cannabis consumption from adolescence to adulthood (ages 15 to 46) was assessed using Group-Based Trajectory Modelling (GBTM). Associations with early individual and family factors were examined using multinomial logistic regression.
resultsWe identified three distinct cannabis use trajectories: declining consumption (69.9%), fluctuating consumption (13.7%), characterized by an initial increase followed by a decrease, and persistent consumption (16.4%). The fluctuating use trajectory was associated with being male (OR = 2.15, 95%CI = 1.31-3.54), having parents who smoked (OR = 2.18 95%CI = 1.18-4.02), and experiencing parental conflict, stress, or frequent absence before age 17 (OR = 1.93, 95%CI = 1.15-3.23). The persistent use trajectory was associated with being male (OR = 3.66, 95%CI = 2.19-6.09), academic difficulties (OR = 2.47, 95%CI = 1.45-4.22), and early initiation of cannabis (OR = 2.31, 5%CI = 1.11-4.79) or both tobacco and cannabis (OR = 3.07, 95%CI = 1.57-6.02).
conclusionsThese findings underscore the importance of early prevention and intervention strategies, particularly in populations where cannabis use persists despite legal restrictions. Given the potential health and social consequences of prolonged cannabis use, it is essential to identify early-life risk factors to inform targeted policy measures aimed at reducing consumption and preventing cannabis use disorders.
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