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Brief interventions to reduce cannabis use in healthcare settings
Summary of the evidence
Brief interventions delivered in healthcare settings targeting cannabis users were found in a systematic review with meta-analysis (Imtiaz et al., 2020) to have no conclusive effects when compared to minimal control interventions in:
- improving cannabis-specific Alcohol, Smoking and Substance Involvement
- Screening Test (ASSIST) scores in the short term (MD = 1.27 points, 95% CI 3.75 - 1.21)
- reducing the number of days of cannabis use in the past 30 days in the short term (MD =0.22 days, 95% CI 2.27- 1.82) and long term (MD= 0.28 days, 95% CI 2.42- 1.86)
