Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

372 questions · 521 findings · 37 reviews

No studies found 9 · 1.7%GRADE not reported 477 · 91.6%Very low 11 · 2.1%Low 16 · 3.1%Moderate 7 · 1.3%High 1 · 0.2%