Cochrane · systematic review · CD009990

School policies for preventing smoking among young people

Coppo, A, Galanti, MR, Giordano, L, et al. · Cochrane Database of Systematic Reviews · 2014 · Cochrane Library

Tobacco AddictionAMSTAR 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
1
current version
GRADE rated
1
No studies
0
Included studies
NR
No studies 0 · 0%Ungraded 0 · 0%Very low 1 · 100%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

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

Comparison

Population: School students
1 question
OutcomeEffectEvidenceStatus / GRADE
Prevalence of current smokers
no estimate extracted1 participantsVery low
Downgraded: risk of bias, imprecision