Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

112 questions · 120 findings · 15 reviews · Headline outcomes only

No studies found 28 · 23.3%GRADE not reported 6 · 5%Very low 20 · 16.7%Low 45 · 37.5%Moderate 18 · 15%High 3 · 2.5%