Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

71 questions · 77 findings · 12 reviews

No studies found 4 · 5.2%GRADE not reported 4 · 5.2%Very low 9 · 11.7%Low 31 · 40.3%Moderate 26 · 33.8%High 3 · 3.9%