Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

189 questions · 191 findings · 14 reviews

No studies found 50 · 26.2%GRADE not reported 1 · 0.5%Very low 48 · 25.1%Low 52 · 27.2%Moderate 30 · 15.7%High 10 · 5.2%