Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

160 questions · 160 findings · 10 reviews · Pregnancy and Childbirth

No studies found 35 · 21.9%GRADE not reported 47 · 29.4%Very low 27 · 16.9%Low 30 · 18.8%Moderate 14 · 8.8%High 7 · 4.4%