Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

105 questions · 106 findings · 69 reviews

No studies found 8 · 7.5%GRADE not reported 2 · 1.9%Very low 38 · 35.8%Low 43 · 40.6%Moderate 10 · 9.4%High 5 · 4.7%