Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

70 questions · 71 findings · 9 reviews · Headline outcomes only

No studies found 29 · 40.8%GRADE not reported 0 · 0%Very low 31 · 43.7%Low 7 · 9.9%Moderate 4 · 5.6%High 0 · 0%