Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

63 questions · 66 findings · 10 reviews · Headline outcomes only

No studies found 12 · 18.2%GRADE not reported 3 · 4.5%Very low 15 · 22.7%Low 21 · 31.8%Moderate 14 · 21.2%High 1 · 1.5%