Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

128 questions · 140 findings · 16 reviews

No studies found 25 · 17.9%GRADE not reported 2 · 1.4%Very low 60 · 42.9%Low 36 · 25.7%Moderate 15 · 10.7%High 2 · 1.4%