Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

62 questions · 62 findings · 31 reviews

No studies found 19 · 30.6%GRADE not reported 2 · 3.2%Very low 19 · 30.6%Low 10 · 16.1%Moderate 7 · 11.3%High 5 · 8.1%