ArticleActa psychiatrica Scandinavica2022
Does cannabis use in adolescence predict self-harm or suicide? Results from a Finnish Birth Cohort Study.
Article in Acta psychiatrica Scandinavica, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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14 citing papers in PubMed.
- Contingency management is associated with positive changes in attitudes and reductions in cannabis use even after discontinuation of incentives among non-treatment seeking youth.Drug and alcohol dependence · 2024Trial
- Longitudinal Effects of Cannabis Use on Suicidal Behaviour in Early Adulthood in Washington State, United States and Victoria, Australia.Prevention science : the official journal of the Society for Prevention Research · 2026Article
- Elevated suicidal thoughts and behaviors, proximal suicide risk factors, and non-suicidal self-injury among adults reporting symptoms of Cannabinoid Hyperemesis Syndrome: Results from a national survey of US adults.medRxiv : the preprint server for health sciences · 2026Article
- Suicidal Behaviour, Self-Harm and Related Factors: A Retrospective Study from the Adolescent Psychiatric Unit.Children (Basel, Switzerland) · 2026Article
- Global adolescent self-harm (10-19 years): 1990-2021 trends, health inequalities, frontier analysis, and 2035 projections using global burden of disease data.Frontiers in public health · 2026Article
- Substance Use, Internet Risk Behavior, and Depressive Symptoms as Predictors of Self-harm Thoughts in Adolescents: Insights from the 2019 ESPAD Survey in Croatia.Child psychiatry and human development · 2025Article
- Could be better: adolescent access to health information and care.European journal of pediatrics · 2024Review
- Investigating Cannabis-Use Among Students Attending High Schools Within the Cherokee Nation Reservation 2017 and 2019.Journal of community health · 2024Article
- Adolescent alcohol and cannabis use and early adulthood educational attainment in the 1986 Northern Finland birth cohort study.BMC public health · 2024Article
- An interrupted time series evaluation of the effect of cannabis legalization on intentional self-harm in two Canadian provinces: Ontario and Alberta.Health promotion and chronic disease prevention in Canada : research, policy and practice · 2023Article
- Alcohol use in adolescence as a risk factor for overdose in the 1986 Northern Finland Birth Cohort Study.European journal of public health · 2022Article
- Is early exposure to cannabis associated with bipolar disorder? Results from a Finnish birth cohort study.Addiction (Abingdon, England) · 2022Observational
- Does cannabis use in adolescence predict self-harm or suicide? Results from a Finnish Birth Cohort Study.Acta psychiatrica Scandinavica · 2022Article
- A Tsunami of Concern: The Lasting Impacts of COVID Isolation and School Closures on Youth Mental Health.Missouri medicineArticle
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8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveLongitudinal studies examining the association between adolescent cannabis use and self-harm are rare, heterogeneous and mixed in their conclusions. We study this association utilizing a large general population-based sample with prospective data.
methodsThe Northern Finland Birth Cohort 1986 (n = 6582) with linkage to nationwide register data was used to study the association of self-reported cannabis use at age 15-16 years and self-harm and suicide death until age 33 (until year 2018), based on register information. Cox regression analysis with Hazard Ratios (HR) and 95% confidence intervals (CI) was used. Psychiatric disorders, parental psychiatric disorders and other substance use were considered as confounders.
resultsIn all, 6582 (49.2% male) were included in the analysis, and 377 adolescents (5.7%) reported any cannabis use until the age of 15-16 years. Based on register information, 79 (55.7% male) had visited in health care services due to self-harm, and 22 (90.1% male) had died by suicide. In crude analyses, adolescent cannabis use was associated with self-harm (HR = 3.93; 95% CI 2.24-6.90). The association between cannabis use and self-harm remained statistically significant after adjusting for sex, psychiatric disorders at baseline, frequent alcohol intoxications, other illicit drug use, and parental psychiatric disorders (HR 2.06; 95% CI 1.07-3.95). In contrast, the association of cannabis use with suicide did not reach statistical significance even in crude analysis (HR 2.60; 95% CI 0.77-8.78).
conclusionCannabis use in adolescence may increase risk of self-harm independent of adolescent psychopathology and other substance use.
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