Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

146 questions · 159 findings · 9 reviews · Colorectal

No studies found 15 · 9.4%GRADE not reported 1 · 0.6%Very low 74 · 46.5%Low 36 · 22.6%Moderate 29 · 18.2%High 4 · 2.5%