Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

60 questions · 61 findings · 7 reviews · Headline outcomes only

No studies found 21 · 34.4%GRADE not reported 3 · 4.9%Very low 15 · 24.6%Low 9 · 14.8%Moderate 8 · 13.1%High 5 · 8.2%