Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,763 questions · 1,835 findings · 201 reviews · Headline outcomes only

No studies found 414 · 22.6%GRADE not reported 51 · 2.8%Very low 570 · 31.1%Low 468 · 25.5%Moderate 272 · 14.8%High 60 · 3.3%