Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

778 questions · 809 findings · 116 reviews

No studies found 205 · 25.3%GRADE not reported 111 · 13.7%Very low 225 · 27.8%Low 155 · 19.2%Moderate 85 · 10.5%High 28 · 3.5%