Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

84 questions · 84 findings · 13 reviews · Headline outcomes only

No studies found 16 · 19%GRADE not reported 2 · 2.4%Very low 20 · 23.8%Low 22 · 26.2%Moderate 18 · 21.4%High 6 · 7.1%