Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

359 questions · 378 findings · 47 reviews

No studies found 90 · 23.8%GRADE not reported 58 · 15.3%Very low 80 · 21.2%Low 104 · 27.5%Moderate 37 · 9.8%High 9 · 2.4%