Among 605 adolescents (mean age 13.2 years), cannabis users scored higher on nearly every mental health risk factor assessed, but hopelessness was the only variable uniquely associated with cannabis use after controlling for other factors.
School counselors, adolescent mental health providers, prevention program designers, and parents.
Hopelessness: the only unique predictor of cannabis use in early adolescents
What the researchers found
Cannabis users scored significantly higher on anomalous reality perception (d = 0.60), hopelessness (d = 0.85), depression symptoms (d = 0.80), rumination (d = 0.48), and anxiety (d = 0.39). Suicide attempts were 3.4 times more common (25.9% vs 7.7%). Logistic regression showed hopelessness was the only unique predictor of cannabis use (OR 1.159, P = 0.033).
Why it matters
Early adolescent cannabis use is increasing, and understanding which mental health factors are most tightly linked could inform targeted prevention. The finding that hopelessness specifically stands out is actionable for school-based mental health programs.
The numbers in context
605 adolescents; mean age 13.2; hopelessness d = 0.85; depression d = 0.80; anomalous perception d = 0.60; suicide attempts 25.9% users vs 7.7% non-users; hopelessness OR 1.159
How the study worked
Cross-sectional study of 605 adolescents in 7th-9th grades (mean age 13.2 years, 47% girls) assessed using validated questionnaires for anomalous perception, rumination, intolerance of uncertainty, hopelessness, depression, anxiety, and suicide attempts. Binary logistic regression identified unique predictors.
What this study cannot tell us
Cross-sectional design cannot determine whether hopelessness leads to cannabis use or vice versa. Spanish adolescent sample may not generalize globally. Self-report measures. Cannabis use was binary (yes/no) without frequency data.
How to read the evidence
Solid sample size with validated measures, but cross-sectional design limits causal inference.
When this study was published
Published in 2021.
The bigger picture
Hopelessness is a modifiable risk factor. If it is both a driver of and consequence of early cannabis use, targeting hopelessness in prevention programs could potentially interrupt the cycle at a point where intervention is most practical.
Questions still open
- Would hopelessness-targeted interventions reduce adolescent cannabis use? Does cannabis use increase or decrease hopelessness over time? Are these associations specific to early onset users or do they apply at all ages?
Common questions
Are young teens who use cannabis more depressed?
Were cannabis-using teens more likely to attempt suicide?
Read the original research
Cannabis use among early adolescents and transdiagnostic mental health risk factors.
Clinical child psychology and psychiatry, 26(2), 531-543
Citation
Moreno-Mansilla, Sara; Ricarte, Jorge J; Hallford, David J. (2021). Cannabis use among early adolescents and transdiagnostic mental health risk factors.. Clinical child psychology and psychiatry, 26(2), 531-543. https://doi.org/10.1177/1359104521994637
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