Evidence map›Paper›PMID 19939407›Full record

ArticleThe Journal of pediatrics2010

In utero iron status and auditory neural maturation in premature infants as evaluated by auditory brainstem response.

Sanjiv B Amin, Mark Orlando, Ann Eddins, Matthew MacDonald, Christy Monczynski, Hongye Wang

Abstract read
In one paragraph

Article in The Journal of pediatrics, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 19% 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

56 citing papers in PubMed, 1 synthesis or guideline pooled it, 109 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
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  6. Trial
  7. Iron supplementation in premature infants using the zinc protoporphyrin to heme ratio: short- and long-term outcomes.Journal of perinatology : official journal of the California Perinatal Association · 2013
    Trial
  8. Association between reticulocyte hemoglobin content (RetHe) and neurodevelopmental outcomes in preterm infants.Journal of perinatology : official journal of the California Perinatal Association · 2026
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Anemia, Iron Supplementation, and the Brain.Clinics in perinatology · 2023
    Review
  16. Biology of Anemia: A Public Health Perspective.The Journal of nutrition · 2023
    Article
  17. Association of Cord Ferritin Levels with Brain Stem Evoked Response Audiometry in Newborns.Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India · 2023
    Article
  18. Review
  19. The importance of iron deficiency in pregnancy on fetal, neonatal, and infant neurodevelopmental outcomes.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2023
    Review
  20. Article
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

6 authors at 2 institutions in 1 country.

Sanjiv B AminDepartment of Pediatrics, Division of Neonatology, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA. Sanjiv_Amin@urmc.rochester.edu
Mark Orlando
Ann Eddins
Matthew MacDonald
Christy Monczynski
Hongye Wang
University of Rochester · USUniversity of Rochester Medical Center · US

Funding

UNIVERSITY OF ROCHESTER'S RESEARCH ASSOCIATE ORGANIZATIONUL1RR024160 · NCRR · UNIVERSITY OF ROCHESTER · PI PEARSON, THOMAS ARTHUR · 2006 to 2011
$38.7M
Bilirubin-induced Auditory Neuropathy in PretermsK23DC006229 · NIDCD · UNIVERSITY OF ROCHESTER · PI AMIN, SANJIV B · 2004 to 2008
$966k
NCRR NIH HHS UL1 RR024160NCRR NIH HHS UL RR 024160NIDCD NIH HHS K23 DC006229NIDCD NIH HHS K-23 DC 006229-04
6 · The paper itself

Abstract

objectiveTo determine whether cord ferritin (CF) concentration, an index of in utero iron status, is associated with auditory neural maturation in premature infants. STUDY

designA prospective cohort study was performed to compare auditory neural maturation in infants with latent iron deficiency (CF 11-75 ng/mL) and infants with normal iron status (CF > 75 ng/mL) at birth. Our inclusion criteria were infants of 27-33 weeks gestational age who were admitted to the neonatal intensive care unit between July 2007 and November 2008 within 12 hours after birth and had cord blood collected. Infants with TORCH infections (toxoplasmosis, other infections, rubella, cytomegalovirus infection, and herpes simplex), chromosomal disorders, craniofacial anomalies, culture-proven sepsis, and/or unstable conditions were excluded. CF level was measured using a chemiluminescence immunoassay method. Bilateral monaural auditory brainstem evoked response (ABR) was assessed using 80-dB nHL click stimuli at a repetition rate of 29.9/seconds within 48 hours after birth.

resultsOf the 80 infants studied, 35 had latent iron deficiency. After controlling for confounders, the infants with latent iron deficiency had significantly prolonged absolute wave latencies I, III, and V and decreased frequency of mature ABR waveforms compared with the infants with normal iron status.

conclusionPremature infants with in utero latent iron deficiency have abnormal auditory neural maturation compared with infants with normal in utero iron status.

Indexed as

Evoked Potentials, Auditory, Brain StemAnemia, Iron-DeficiencyCochlear NerveFemaleFerritinsFetal BloodFetal DiseasesFetal Organ MaturityHumansInfant, NewbornInfant, PrematureMaleFerritins

Identifiers

PMID19939407
PMCPMC2827634
OpenAlexW2168799144

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.