Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,359 questions · 2,491 findings · 249 reviews

No studies found 696 · 27.9%GRADE not reported 213 · 8.6%Very low 611 · 24.5%Low 595 · 23.9%Moderate 315 · 12.6%High 61 · 2.4%