Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

189 questions · 190 findings · 58 reviews

No studies found 43 · 22.6%GRADE not reported 14 · 7.4%Very low 53 · 27.9%Low 44 · 23.2%Moderate 27 · 14.2%High 9 · 4.7%