Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

78 questions · 78 findings · 13 reviews · Headline outcomes only

No studies found 10 · 12.8%GRADE not reported 2 · 2.6%Very low 26 · 33.3%Low 20 · 25.6%Moderate 12 · 15.4%High 8 · 10.3%