Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

67 questions · 75 findings · 6 reviews · Headline outcomes only

No studies found 11 · 14.7%GRADE not reported 0 · 0%Very low 20 · 26.7%Low 33 · 44%Moderate 10 · 13.3%High 1 · 1.3%