Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

125 questions · 126 findings · 14 reviews · Headline outcomes only

No studies found 29 · 23%GRADE not reported 2 · 1.6%Very low 37 · 29.4%Low 50 · 39.7%Moderate 8 · 6.3%High 0 · 0%