Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

690 questions · 711 findings · 93 reviews

No studies found 167 · 23.5%GRADE not reported 36 · 5.1%Very low 181 · 25.5%Low 202 · 28.4%Moderate 100 · 14.1%High 25 · 3.5%