Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

175 questions · 177 findings · 29 reviews

No studies found 32 · 18.1%GRADE not reported 13 · 7.3%Very low 49 · 27.7%Low 54 · 30.5%Moderate 25 · 14.1%High 4 · 2.3%