Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

522 questions · 532 findings · 23 reviews

No studies found 88 · 16.5%GRADE not reported 174 · 32.7%Very low 111 · 20.9%Low 92 · 17.3%Moderate 46 · 8.6%High 21 · 3.9%