Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

577 questions · 585 findings · 57 reviews

No studies found 61 · 10.4%GRADE not reported 46 · 7.9%Very low 206 · 35.2%Low 210 · 35.9%Moderate 52 · 8.9%High 10 · 1.7%