Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

70 questions · 72 findings · 3 reviews · Headline outcomes only

No studies found 20 · 27.8%GRADE not reported 3 · 4.2%Very low 29 · 40.3%Low 14 · 19.4%Moderate 6 · 8.3%High 0 · 0%