Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

528 questions · 535 findings · 57 reviews

No studies found 147 · 27.5%GRADE not reported 66 · 12.3%Very low 121 · 22.6%Low 115 · 21.5%Moderate 78 · 14.6%High 8 · 1.5%