Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

47 questions · 47 findings · 29 reviews · Headline outcomes only

No studies found 21 · 44.7%GRADE not reported 2 · 4.3%Very low 10 · 21.3%Low 9 · 19.1%Moderate 3 · 6.4%High 2 · 4.3%