Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

168 questions · 181 findings · 19 reviews

No studies found 63 · 34.8%GRADE not reported 49 · 27.1%Very low 39 · 21.5%Low 14 · 7.7%Moderate 11 · 6.1%High 5 · 2.8%