Peer Cannabis Use Was the Strongest Predictor of Teen Cannabis Use in Ireland

Among 4,404 Irish adolescents, peer cannabis use was the strongest risk factor (10x higher odds).

O'Dowd, Teresa M et al.·Irish journal of psychological medicine·2024·Moderate EvidenceCross-Sectional
RTHC-05599Cross SectionalModerate Evidence2024RETHINKTHC RESEARCH DATABASErethinkthc.com/research

Quick Facts

Study Type
Cross-Sectional
Evidence
Moderate Evidence
Sample
N=4,404

What This Study Found

Current use prevalence: 7.3%. Peer use aOR 10.17; parental ambivalence aOR 3.69; non-harmful perception aOR 2.32; other substance use aOR 2.67-3.15; peer pressure aOR 1.85; low supervision aOR 1.11.

Key Numbers

4,404 adolescents; 7.3% current use; peer use aOR 10.17; parental ambivalence aOR 3.69

How They Did This

Secondary analysis of Planet Youth survey (2021), 4,404 adolescents aged 15-16 in Ireland.

Why This Research Matters

Peer influence dwarfs all other risk factors, suggesting community-level approaches may work better than individual ones.

The Bigger Picture

The Iceland Model (Planet Youth) has shown success through community-level interventions. This data supports that.

What This Study Doesn't Tell Us

Cross-sectional. Self-reported. Irish context.

Questions This Raises

  • ?Would targeting parental attitudes reduce teen use?
  • ?How does peer influence compare across countries?

Trust & Context

Key Stat:
Peers who use cannabis increased a teen's odds of use by 10x
Evidence Grade:
Large population survey but cross-sectional.
Study Age:
Published in 2024 with 2021 data.
Original Title:
Risk and protective factors for cannabis use in adolescence: a population-based survey in schools.
Published In:
Irish journal of psychological medicine, 1-9 (2024)
Database ID:
RTHC-05599

Evidence Hierarchy

Meta-Analysis / Systematic Review
Randomized Controlled Trial
Cohort / Case-Control
Cross-Sectional / ObservationalSnapshot without intervening
This study
Case Report / Animal Study

A snapshot of a population at one point in time.

What do these levels mean? →

Frequently Asked Questions

Biggest risk factor for teen cannabis use?

Having friends who use cannabis (10x higher odds).

Do parents matter?

Yes. Parental tolerance was associated with 3.7x higher odds.

Read More on RethinkTHC

Cite This Study

RTHC-05599·https://rethinkthc.com/research/RTHC-05599

APA

O'Dowd, Teresa M; Fleury, Ronan; Power, Emmet; Dooley, Niamh; Quinn, Laura; Petropoulos, Stephen; Healy, Colm; Smyth, Bobby; Cannon, Mary. (2024). Risk and protective factors for cannabis use in adolescence: a population-based survey in schools.. Irish journal of psychological medicine, 1-9. https://doi.org/10.1017/ipm.2024.28

MLA

O'Dowd, Teresa M, et al. "Risk and protective factors for cannabis use in adolescence: a population-based survey in schools.." Irish journal of psychological medicine, 2024. https://doi.org/10.1017/ipm.2024.28

RethinkTHC

RethinkTHC Research Database. "Risk and protective factors for cannabis use in adolescence:..." RTHC-05599. Retrieved from https://rethinkthc.com/research/o-dowd-2024-risk-and-protective-factors

Access the Original Study

Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.

This study breakdown was produced by the RethinkTHC research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.