Findings

What do systematic reviews say?

2 questions · 2 findings · 1 reviews

No studies found 0 · 0%GRADE not reported 0 · 0%Very low 0 · 0%Low 0 · 0%Moderate 1 · 50%High 1 · 50%

Hard drug use < 12 months Subjective · primary or secondary school pupils

Social competence showed no clear difference in hard drug use < 12 months Subjective compared with usual curricula (moderate certainty).

1 finding from 1 review

Universal school‐based prevention for illicit drug use 2014 · Cochrane Headline outcomes only
RR 0.69 [0.4, 1.18]
1 study · 2090 participants
Moderate

Hard drugs use ≥ 12 months Subjective · primary or secondary school pupils

1 finding from 1 review

Universal school‐based prevention for illicit drug use 2014 · Cochrane Headline outcomes only
no estimate extracted
1 study · 1075 participants
High