Findings

What do systematic reviews say?

Refine by population, intervention, comparison or outcome
More filters
Evidence found and GRADE certainty

315 questions · 322 findings · 90 reviews · Headline outcomes only

No studies found 88 · 27.3%GRADE not reported 17 · 5.3%Very low 88 · 27.3%Low 81 · 25.2%Moderate 40 · 12.4%High 8 · 2.5%