Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

383 questions · 397 findings · 37 reviews

No studies found 59 · 14.9%GRADE not reported 11 · 2.8%Very low 70 · 17.6%Low 86 · 21.7%Moderate 110 · 27.7%High 61 · 15.4%