Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

130 questions · 155 findings · 13 reviews

No studies found 34 · 21.9%GRADE not reported 13 · 8.4%Very low 35 · 22.6%Low 47 · 30.3%Moderate 23 · 14.8%High 3 · 1.9%