Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

189 questions · 190 findings · 62 reviews

No studies found 72 · 37.9%GRADE not reported 11 · 5.8%Very low 59 · 31.1%Low 28 · 14.7%Moderate 15 · 7.9%High 5 · 2.6%