Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

174 questions · 177 findings · 15 reviews · Gut

No studies found 30 · 16.9%GRADE not reported 4 · 2.3%Very low 72 · 40.7%Low 45 · 25.4%Moderate 24 · 13.6%High 2 · 1.1%