Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

707 questions · 750 findings · 36 reviews

No studies found 56 · 7.5%GRADE not reported 200 · 26.7%Very low 142 · 18.9%Low 186 · 24.8%Moderate 132 · 17.6%High 34 · 4.5%