Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

252 questions · 261 findings · 21 reviews

No studies found 75 · 28.7%GRADE not reported 3 · 1.1%Very low 66 · 25.3%Low 75 · 28.7%Moderate 27 · 10.3%High 15 · 5.7%