Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

190 questions · 191 findings · 29 reviews

No studies found 56 · 29.3%GRADE not reported 6 · 3.1%Very low 39 · 20.4%Low 49 · 25.7%Moderate 36 · 18.8%High 5 · 2.6%