Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

111 questions · 117 findings · 15 reviews · Headline outcomes only

No studies found 20 · 17.1%GRADE not reported 1 · 0.9%Very low 31 · 26.5%Low 30 · 25.6%Moderate 21 · 17.9%High 14 · 12%