Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

505 questions · 512 findings · 67 reviews

No studies found 104 · 20.3%GRADE not reported 27 · 5.3%Very low 107 · 20.9%Low 129 · 25.2%Moderate 107 · 20.9%High 38 · 7.4%