Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

311 questions · 323 findings · 30 reviews

No studies found 47 · 14.6%GRADE not reported 21 · 6.5%Very low 91 · 28.2%Low 65 · 20.1%Moderate 82 · 25.4%High 17 · 5.3%