Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

66 questions · 67 findings · 9 reviews · Headline outcomes only

No studies found 22 · 32.8%GRADE not reported 4 · 6%Very low 23 · 34.3%Low 14 · 20.9%Moderate 4 · 6%High 0 · 0%