Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

338 questions · 369 findings · 33 reviews

No studies found 91 · 24.7%GRADE not reported 68 · 18.4%Very low 125 · 33.9%Low 49 · 13.3%Moderate 32 · 8.7%High 4 · 1.1%