Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

87 questions · 89 findings · 9 reviews · Headline outcomes only

No studies found 7 · 7.9%GRADE not reported 9 · 10.1%Very low 30 · 33.7%Low 33 · 37.1%Moderate 10 · 11.2%High 0 · 0%