Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,536 questions · 1,565 findings · 628 reviews · Headline outcomes only

No studies found 248 · 15.8%GRADE not reported 125 · 8%Very low 332 · 21.2%Low 446 · 28.5%Moderate 324 · 20.7%High 90 · 5.8%