Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

151 questions · 151 findings · 4 reviews · Headline outcomes only

No studies found 1 · 0.7%GRADE not reported 44 · 29.1%Very low 9 · 6%Low 5 · 3.3%Moderate 90 · 59.6%High 2 · 1.3%