Cochrane · systematic review · CD006751
Vitamin A and beta (β)‐carotene supplementation for cystic fibrosis
de Vries, JJV, Chang, AB, Bonifant, CM, et al. · Cochrane Database of Systematic Reviews · 2018 · Cochrane Library
Cystic Fibrosis and Genetic DisordersAMSTAR 2: not assessed
SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
6
current version
GRADE rated
4
No studies
2
Included studies
NR
No studies 2 · 33.3%Ungraded 0 · 0%Very low 0 · 0%Low 4 · 66.7%Moderate 0 · 0%High 0 · 0%
Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.
Questions and results
Summary of findings
Population: children and adults with CF
| Outcome | Effect | Evidence | Status / GRADE |
|---|---|---|---|
Vitamin A deficiency disorders | no estimate extracted | NR | No studies |
Growth and nutritional status:z‐score for height | no estimate extracted | 1 study · 24 participants | Low Downgraded: risk of bias, imprecision |
Mortality | no estimate extracted | NR | No studies |
Respiratory outcomes: FEV1 (% predicted): | no estimate extracted | 1 study · 24 participants | Low Downgraded: risk of bias, imprecision |
Respiratory outcomes: Antibiotic days per patient in past 3 months | no estimate extracted | 1 study · 24 participants | Low Downgraded: risk of bias, imprecision |
Adverse events | no estimate extracted | 1 study · 24 participants | Low Downgraded: risk of bias, imprecision |