Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

97 questions · 110 findings · 18 reviews · Headline outcomes only

No studies found 6 · 5.5%GRADE not reported 0 · 0%Very low 27 · 24.5%Low 59 · 53.6%Moderate 17 · 15.5%High 1 · 0.9%