Journal article

Young-adult compared to adolescent onset of regular cannabis use: A 20-year prospective cohort study of later consequences

Gary CK Chan, Denise Becker, Peter Butterworth, Lindsey Hines, Carolyn Coffey, Wayne Hall, George Patton

DRUG AND ALCOHOL REVIEW | WILEY | Published : 2021

Abstract

INTRODUCTION: This paper compares consequences of cannabis use initiated after high school with those of cannabis initiation in adolescence, with estimates of the proportion of adverse consequences accounted for by adult-onset and adolescent-onset cannabis users. METHODS: A state-representative sample in Victoria, Australia (n = 1792) participated in a 10-wave longitudinal study and was followed from age 15 to 35 years. Exposure variable: Patterns of cannabis use across 20 years. Outcomes at age 35: Alcohol use, smoking, illicit drug use, relationship status, financial hardship, depression, anxiety and employment status. RESULTS: Substantially more participants (13.6%) initiated regular use ..

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Grants

Funding Acknowledgements

GC was supported by funding from the Department of Health, Australian Government.