Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

86 questions · 87 findings · 5 reviews · Headline outcomes only

No studies found 36 · 41.4%GRADE not reported 5 · 5.7%Very low 27 · 31%Low 13 · 14.9%Moderate 6 · 6.9%High 0 · 0%