Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,016 questions · 2,067 findings · 222 reviews · Headline outcomes only

No studies found 471 · 22.8%GRADE not reported 108 · 5.2%Very low 570 · 27.6%Low 458 · 22.2%Moderate 363 · 17.6%High 97 · 4.7%