Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

170 questions · 176 findings · 19 reviews · Heart

No studies found 25 · 14.2%GRADE not reported 14 · 8%Very low 32 · 18.2%Low 59 · 33.5%Moderate 34 · 19.3%High 12 · 6.8%