Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

51 questions · 61 findings · 6 reviews · Headline outcomes only

No studies found 10 · 16.4%GRADE not reported 1 · 1.6%Very low 15 · 24.6%Low 12 · 19.7%Moderate 23 · 37.7%High 0 · 0%