Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

294 questions · 308 findings · 41 reviews

No studies found 65 · 21.1%GRADE not reported 21 · 6.8%Very low 83 · 26.9%Low 66 · 21.4%Moderate 47 · 15.3%High 26 · 8.4%