Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

124 questions · 125 findings · 17 reviews · Headline outcomes only

No studies found 33 · 26.4%GRADE not reported 10 · 8%Very low 27 · 21.6%Low 19 · 15.2%Moderate 31 · 24.8%High 5 · 4%