Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,822 questions · 1,891 findings · 321 reviews · Headline outcomes only

No studies found 279 · 14.8%GRADE not reported 46 · 2.4%Very low 524 · 27.7%Low 571 · 30.2%Moderate 330 · 17.5%High 141 · 7.5%