Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

126 questions · 126 findings · 31 reviews

No studies found 89 · 70.6%GRADE not reported 8 · 6.3%Very low 16 · 12.7%Low 8 · 6.3%Moderate 4 · 3.2%High 1 · 0.8%