Evidence map›Paper›PMID 30801736›Full record

ArticleTransfusion2019

Enteral iron supplementation, red blood cell transfusion, and risk of bronchopulmonary dysplasia in very-low-birth-weight infants.

Ravi Mangal Patel, Andrea Knezevic, Jing Yang, Neeta Shenvi, Michael Hinkes, John D Roback, Kirk A Easley, Cassandra D Josephson

Open access · greenAbstract read
In one paragraph

Article in Transfusion, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
2.8field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

29 citing papers in PubMed, 1 synthesis or guideline pooled it, 43 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Assessment of iron sufficiency in premature infants treated with darbepoetin using conventional and novel erythrocyte metrics.Journal of perinatology : official journal of the California Perinatal Association · 2026
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Fetal haemoglobin and oxygen requirement in preterm infants: an observational study.Archives of disease in childhood. Fetal and neonatal edition · 2025
    Observational
  10. Article
  11. Article
  12. Hyperferritinemia among very-low-birthweight infants in Thailand: a prospective cohort study.Journal of perinatology : official journal of the California Perinatal Association · 2024
    Article
  13. Article
  14. Transfusion strategies for neonates: current perspectives.Annals of medicine and surgery (2012) · 2024
    Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Molecular mechanisms of cell death in bronchopulmonary dysplasia.Apoptosis : an international journal on programmed cell death · 2023
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 5 institutions in 1 country.

Ravi Mangal PatelDivision of Neonatology, Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, Georgia.ORCID 0000-0002-7444-5550
Andrea KnezevicBiostatistics and Bioinformatics, Rollins School of Public Health, Atlanta, Georgia.
Jing YangBiostatistics and Bioinformatics, Rollins School of Public Health, Atlanta, Georgia.
Neeta ShenviBiostatistics and Bioinformatics, Rollins School of Public Health, Atlanta, Georgia.
Michael HinkesNorthside Hospital, Atlanta, Georgia.
John D RobackPathology and Laboratory Medicine, Center for Transfusion and Cellular Therapies, Emory University School of Medicine, Atlanta, Georgia.
Kirk A EasleyBiostatistics and Bioinformatics, Rollins School of Public Health, Atlanta, Georgia.
Cassandra D JosephsonPathology and Laboratory Medicine, Center for Transfusion and Cellular Therapies, Emory University School of Medicine, Atlanta, Georgia.
Emory University · USGeorgia Department of Public Health · USMemorial Sloan Kettering Cancer Center · USMerck & Co., Inc., Rahway, NJ, USA (United States) · USNorthside Hospital · US

Funding

Implementing a Maternal health and PRegnancy Outcomes Vision for Everyone (IMPROVE)UL1TR002378 · NCATS · EMORY UNIVERSITY · PI Andres J Garcia, Elizabeth O. Ofili · 2017 to 2026
$92.1M
THE RoLE OF NEONATAL ANEMIA IN LEARNING AND MEMORYP01HL046925 · NHLBI · UNIVERSITY OF IOWA · PI NOPOULOS, PEGGY C · 1992 to 2022
$34.3M
Atlanta Clinical and Translational Science Institute (ACTSI) RenewalUL1TR000454 · NCATS · EMORY UNIVERSITY · PI STEPHENS, DAVID S · 2012 to 2016
$25.8M
Serious Hazards of Transfusion & Cellular Therapies: Mechanisms and InterventionP01HL086773 · NHLBI · EMORY UNIVERSITY · PI ROBACK, JOHN D · 2008 to 2019
$17.9M
Atlanta Clinical and Translational Science Institute (ACTSI) RenewalKL2TR000455 · NCATS · EMORY UNIVERSITY · PI STEPHENS, DAVID S · 2012 to 2016
$2.9M
Red Cell Transfusion, Severe Anemia and Necrotizing EnterocolitisK23HL128942 · NHLBI · EMORY UNIVERSITY · PI PATEL, RAVI MANGAL · 2016 to 2019
$665k
NCATS NIH HHS KL2 TR000455NCATS NIH HHS UL1 TR000454NCATS NIH HHS UL1 TR002378NHLBI NIH HHS K23 HL128942NHLBI NIH HHS P01 HL046925NHLBI NIH HHS P01 HL086773
6 · The paper itself

Abstract

backgroundEnteral iron supplementation and RBC transfusions are routinely administered to very-low-birth-weight (VLBW) infants, although the potential risks of these exposures have not been adequately quantified. This study evaluated the association between the cumulative dose of enteral iron supplementation, total volume of RBCs transfused, and risk of bronchopulmonary dysplasia (BPD) in VLBW infants. STUDY DESIGN AND

methodsRetrospective, multicenter observational cohort study in Atlanta, Georgia. Cumulative supplemental enteral iron exposure and total volume of RBCs transfused were measured until the age at assessment of BPD. Multivariable generalized linear models were used to control for confounding, and the reliability of the factors was assessed in 1000 bootstrap models.

resultsA total of 598 VLBW infants were studied. In multivariable analyses, a greater cumulative dose of supplemental enteral iron exposure was associated with an increased risk of BPD (adjusted relative risk per 50-mg increase, 1.07; 95% confidence interval [CI], 1.02-1.11; p = 0.002). Similarly, a greater volume of RBCs transfused was associated with a higher risk of BPD (adjusted relative risk per 20-mL increase, 1.05; 95% CI, 1.02-1.07; p < 0.001). Both factors were reliably associated with BPD (>50%). Volume of RBCs transfused was similar to gestational age in reliability as a risk factor for BPD (present in 100% of models) and was more reliable than mechanical ventilation at 1 week of age.

conclusionThe cumulative dose of supplemental enteral iron exposure and total volume of RBC transfusion are both independently associated with an increased risk of BPD in VLBW infants.

Indexed as

AdultBlood TransfusionBronchopulmonary DysplasiaCohort StudiesErythrocyte TransfusionFemaleHumansInfantInfant, NewbornInfant, Very Low Birth WeightIronLung InjuryMaleMulticenter Studies as TopicMultivariate AnalysisPregnancyIron

Identifiers

PMID30801736
PMCPMC6499698
OpenAlexW2917234903

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.