Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

163 questions · 169 findings · 42 reviews

No studies found 29 · 17.2%GRADE not reported 8 · 4.7%Very low 29 · 17.2%Low 45 · 26.6%Moderate 52 · 30.8%High 6 · 3.6%