Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

102 questions · 106 findings · 15 reviews · Headline outcomes only

No studies found 31 · 29.2%GRADE not reported 4 · 3.8%Very low 33 · 31.1%Low 23 · 21.7%Moderate 10 · 9.4%High 5 · 4.7%