Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

842 questions · 924 findings · 54 reviews

No studies found 215 · 23.3%GRADE not reported 127 · 13.7%Very low 212 · 22.9%Low 208 · 22.5%Moderate 130 · 14.1%High 32 · 3.5%