Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

74 questions · 74 findings · 3 reviews · Headline outcomes only

No studies found 30 · 40.5%GRADE not reported 0 · 0%Very low 2 · 2.7%Low 26 · 35.1%Moderate 4 · 5.4%High 12 · 16.2%