Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

63 questions · 64 findings · 21 reviews

No studies found 12 · 18.8%GRADE not reported 4 · 6.3%Very low 22 · 34.4%Low 17 · 26.6%Moderate 8 · 12.5%High 1 · 1.6%