Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

138 questions · 138 findings · 25 reviews

No studies found 36 · 26.1%GRADE not reported 13 · 9.4%Very low 36 · 26.1%Low 30 · 21.7%Moderate 19 · 13.8%High 4 · 2.9%