Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

412 questions · 433 findings · 54 reviews

No studies found 154 · 35.6%GRADE not reported 31 · 7.2%Very low 110 · 25.4%Low 94 · 21.7%Moderate 40 · 9.2%High 4 · 0.9%