Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

101 questions · 119 findings · 15 reviews · Headline outcomes only

No studies found 22 · 18.5%GRADE not reported 16 · 13.4%Very low 45 · 37.8%Low 31 · 26.1%Moderate 5 · 4.2%High 0 · 0%