Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

22 questions · 23 findings · 3 reviews

No studies found 9 · 39.1%GRADE not reported 0 · 0%Very low 5 · 21.7%Low 7 · 30.4%Moderate 2 · 8.7%High 0 · 0%

Summary of findings: oral vitamin E supplementation vs placebo or no treatment

FEV1 % predicted: absolute change from baseline · adults and children with cystic fibrosis

The review found no eligible studies for this question.

2 findings from 1 review