Question · asked by 1 review

Vitamin A vs no supplementation: Chronic lung disease

Supplemental vitamin A showed no clear difference in chronic lung disease (oxygen use at 28 days in survivors) compared with no supplementation (moderate certainty).

What each review found

Include earlier review versions
FindingEffectStudiesGRADE certainty
Supplemental vitamin A vs no supplementation
Chronic lung disease (oxygen use at 28 days in survivors) · very low birth weight infants
Supplemental vitamin A showed no clear difference in chronic lung disease (oxygen use at 28 days in survivors) compared with no supplementation (moderate certainty).
Vitamin A supplementation to prevent mortality and short‐ and long‐term morbidity in very low birth weight… (2016) · Cochrane Headline outcomes only
RR 0.93 [0.86, 1.01]7 studies · 1070 participantsModerate
Supplemental vitamin A vs no supplementation
Chronic lung disease (oxygen use at 36 weeks' postmenstrual age in survivors) · very low birth weight infants
Supplemental vitamin A probably leads to lower chronic lung disease (oxygen use at 36 weeks' postmenstrual age in… compared with no supplementation (moderate certainty).
Vitamin A supplementation to prevent mortality and short‐ and long‐term morbidity in very low birth weight… (2016) · Cochrane Headline outcomes only
RR 0.87 [0.77, 0.99]5 studies · 986 participantsModerate

Findings are shown side by side, never pooled across reviews.

The reviews

ReviewSearched up toIncluded studiesAMSTAR 2
Vitamin A supplementation to prevent mortality and short‐ and long‐term morbidity in very low birth weight infants
2016 · Cochrane Headline outcomes only
Not reportedlist not extracted yetNot assessed

Studies behind the findings

None of these reviews ties its included studies to this outcome in the data here. Cochrane reviews and reviews with headline outcomes only do not list their studies yet.

How reviews are matched to this question

Reviews word the same question differently. Four decision models (TypeSafe's Jev, Liquid AI's d1-ultra, SubQ Snap and Baseten's Elephant) judged each wording of the population, intervention, comparator and outcome against the others; two wordings count as the same when at least three of them agree and none clearly disagrees, and findings count as this question only when all four elements match. Timing, setting and subgroup never split a question: they are shown on each finding.