Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

309 questions · 330 findings · 31 reviews

No studies found 59 · 17.9%GRADE not reported 63 · 19.1%Very low 93 · 28.2%Low 77 · 23.3%Moderate 27 · 8.2%High 11 · 3.3%