Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

166 questions · 179 findings · 18 reviews

No studies found 63 · 35.2%GRADE not reported 47 · 26.3%Very low 39 · 21.8%Low 14 · 7.8%Moderate 11 · 6.1%High 5 · 2.8%