Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

395 questions · 407 findings · 33 reviews

No studies found 113 · 27.8%GRADE not reported 39 · 9.6%Very low 91 · 22.4%Low 105 · 25.8%Moderate 50 · 12.3%High 9 · 2.2%