Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

191 questions · 192 findings · 60 reviews

No studies found 43 · 22.4%GRADE not reported 14 · 7.3%Very low 54 · 28.1%Low 44 · 22.9%Moderate 28 · 14.6%High 9 · 4.7%