Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

77 questions · 77 findings · 27 reviews

No studies found 44 · 57.1%GRADE not reported 1 · 1.3%Very low 6 · 7.8%Low 16 · 20.8%Moderate 8 · 10.4%High 2 · 2.6%