Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

86 questions · 86 findings · 29 reviews · Headline outcomes only

No studies found 51 · 59.3%GRADE not reported 1 · 1.2%Very low 8 · 9.3%Low 16 · 18.6%Moderate 8 · 9.3%High 2 · 2.3%