Journal
ADDICTION
Volume 108, Issue 12, Pages 2129-2138Publisher
WILEY
DOI: 10.1111/add.12268
Keywords
Adolescence; ALSPAC; cannabis problems; cannabis use; conduct disorder; risk factors; trajectories
Categories
Funding
- UK Medical Research Council [74882, G0800612, G0802736]
- Wellcome Trust [076467]
- MRC [G0802736, G0800612] Funding Source: UKRI
- Medical Research Council [G0800612, G9815508, G0802736] Funding Source: researchfish
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AimsTo investigate the prevalence of cannabis use and problem use in boys and girls at age 16 years, and to investigate the role of adversity in early life and of conduct disorder between the ages of 4 and 13 years as risk factors for these outcomes. DesignBirth cohort study. SettingEngland. ParticipantsA total of 4159 (2393 girls) participants in the Avon Longitudinal Study of Parents and Children (ALSPAC) birth cohort providing information on cannabis use at age 16. MeasurementsCannabis use and problem cannabis use at age 16 were assessed by postal questionnaire. Material adversity, maternal substance use, maternal mental health and child conduct disorder were all assessed by maternal report. FindingsCannabis use was more common among girls than boys (21.4% versus 18.3%, P=0.005). Problem cannabis use was more common in boys than girls (3.6% versus 2.8%, P=0.007). Early-onset persistent conduct problems were associated strongly with problem cannabis use [odds ratio (OR)=6.46, 95% confidence interval (CI)=4.06-10.28]. Residence in subsidized housing (OR=3.10, 95% CI=1.95, 4.92); maternal cannabis use (OR 8.84, 95% CI 5.64-13.9) and any maternal smoking in the postnatal period (OR=2.69, 95% CI=1.90-3.81) all predicted problem cannabis use. Attributable risks for adolescent problem cannabis use associated with the above factors were 25, 13, 17 and 24%, respectively. ConclusionsMaternal smoking and cannabis use, early material disadvantage and early-onset persistent conduct problems are important risk factors for adolescent problem cannabis use. This may have implications for prevention.
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