Findings

What do systematic reviews say?

5 questions · 5 findings · 1 reviews · Headline outcomes only

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No studies found 1 · 20%GRADE not reported 0 · 0%Very low 0 · 0%Low 1 · 20%Moderate 3 · 60%High 0 · 0%

Intervention not reported

Cannabis use · children and young people aged 0 to 18 years

The intervention showed no clear difference in cannabis use (moderate certainty).

1 finding from 1 review

Individual‐, family‐, and school‐level interventions targeting multiple risk behaviours in young people 2018 · Cochrane Headline outcomes only
OR 0.69 [0.46, 1.04]
2 studies · 362 participants
Moderate

Intervention not reported

Cannabis use · children and young people aged 0 to 18 years

The intervention showed no clear difference in cannabis use (low certainty).

1 finding from 1 review

Individual‐, family‐, and school‐level interventions targeting multiple risk behaviours in young people 2018 · Cochrane Headline outcomes only
OR 1.02 [0.52, 2.02]
3 studies · 380 participants
Low

Intervention not reported

Cannabis use · children and young people aged 0 to 18 years

The review found no eligible studies for this question.

1 finding from 1 review

Individual‐, family‐, and school‐level interventions targeting multiple risk behaviours in young people 2018 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Intervention not reported

Cannabis use · children and young people aged 0 to 18 years

The intervention showed no clear difference in cannabis use (moderate certainty).

1 finding from 1 review

Individual‐, family‐, and school‐level interventions targeting multiple risk behaviours in young people 2018 · Cochrane Headline outcomes only
OR 1.1 [0.69, 1.76]
2 studies · 126 participants
Moderate

Intervention not reported

Cannabis use · children and young people aged 0 to 18 years

The intervention showed no clear difference in cannabis use (moderate certainty).

1 finding from 1 review

Individual‐, family‐, and school‐level interventions targeting multiple risk behaviours in young people 2018 · Cochrane Headline outcomes only
OR 0.79 [0.62, 1.01]
5 studies · 4140 participants
Moderate