Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,509 questions · 2,666 findings · 288 reviews

No studies found 743 · 27.9%GRADE not reported 327 · 12.3%Very low 775 · 29.1%Low 484 · 18.2%Moderate 279 · 10.5%High 58 · 2.2%