Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

103 questions · 105 findings · 6 reviews · Headline outcomes only

No studies found 29 · 27.6%GRADE not reported 1 · 1%Very low 51 · 48.6%Low 20 · 19%Moderate 4 · 3.8%High 0 · 0%