Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

496 questions · 532 findings · 43 reviews

No studies found 136 · 25.6%GRADE not reported 22 · 4.1%Very low 136 · 25.6%Low 150 · 28.2%Moderate 68 · 12.8%High 20 · 3.8%