Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

452 questions · 459 findings · 27 reviews

No studies found 107 · 23.3%GRADE not reported 89 · 19.4%Very low 98 · 21.4%Low 75 · 16.3%Moderate 68 · 14.8%High 22 · 4.8%