Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

828 questions · 1,477 findings · 103 reviews

No studies found 5 · 0.3%GRADE not reported 1,402 · 94.9%Very low 38 · 2.6%Low 20 · 1.4%Moderate 11 · 0.7%High 1 · 0.1%