Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

139 questions · 139 findings · 12 reviews · Consumers and Communication

No studies found 20 · 14.4%GRADE not reported 17 · 12.2%Very low 43 · 30.9%Low 30 · 21.6%Moderate 21 · 15.1%High 8 · 5.8%