Cochrane · systematic review · CD003020
Universal school‐based prevention for illicit drug use
Faggiano, F, Minozzi, S, Versino, E, et al. · Cochrane Database of Systematic Reviews · 2014 · Cochrane Library
Drugs and AlcoholAMSTAR 2: not assessed
SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
12
current version
GRADE rated
12
No studies
0
Included studies
NR
No studies 0 · 0%Ungraded 0 · 0%Very low 0 · 0%Low 0 · 0%Moderate 7 · 58.3%High 5 · 41.7%
Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.
Questions and results
Social competence versus usual curricula for illicit drug use
Population: primary or secondary school pupils
| Outcome | Effect | Evidence | Status / GRADE |
|---|---|---|---|
Marijuana use < 12 months Subjective Social competence vs usual curricula | RR 0.9 [0.81, 1.01] | 4 studies · 9456 participants | Moderate Downgraded: risk of bias, imprecision |
Marijuana use ≥ 12 months Subjective Social competence vs usual curricula | RR 0.86 [0.74, 1] | 1 study · 2678 participants | High |
Hard drug use < 12 months Subjective Social competence vs usual curricula | RR 0.69 [0.4, 1.18] | 1 study · 2090 participants | Moderate Downgraded: risk of bias |
Hard drugs use ≥ 12 months Subjective Social competence vs usual curricula | no estimate extracted | 1 study · 1075 participants | High |
Any drug use < 12 months Subjective Social competence vs usual curricula | RR 0.27 [0.14, 0.51] | 2 studies · 2512 participants | Moderate Downgraded: risk of bias, imprecision |
Social influence versus usual curricula for illicit drug use
Population: primary or secondary school pupils
| Outcome | Effect | Evidence | Status / GRADE |
|---|---|---|---|
Marijuana use < 12 months Subjective Social influence vs usual curricula | RR 0.88 [0.72, 1.07] | 3 studies · 10716 participants | Moderate Downgraded: risk of bias, imprecision |
Marijuana use ≥ 12 months Subjective Social influence vs usual curricula | RR 0.95 [0.81, 1.13] | 1 study · 5862 participants | Moderate Downgraded: risk of bias |
Combined programmes versus usual curricula for illicit drug use
Population: primary or secondary school pupils
| Outcome | Effect | Evidence | Status / GRADE |
|---|---|---|---|
Marijuana use < 12 months Subjective Combined programmes vs usual curricula | RR 0.79 [0.59, 1.05] | 3 studies · 8701 participants | Moderate Downgraded: risk of bias, imprecision |
Marijuana use ≥12 months Subjective Combined programmes vs usual curricula | RR 0.83 [0.69, 0.99] | 6 studies · 26910 participants | Moderate Downgraded: risk of bias, imprecision |
Hard drug use < 12 months Subjective Combined programmes vs usual curricula | RR 0.85 [0.63, 1.14] | 1 study · 693 participants | High |
Hard drugs use ≥12 months Subjective Combined programmes vs usual curricula | RR 0.86 [0.39, 1.9] | 2 studies · 1066 participants | High |
Any drugs use < 12 months Subjective Combined programmes vs usual curricula | RR 0.76 [0.64, 0.89] | 1 study · 6362 participants | High |