Evidence map›Paper›PMID 33012780›Full record

ArticleJournal of perinatology : official journal of the California Perinatal Association2021

Reconciling markedly discordant values of serum ferritin versus reticulocyte hemoglobin content.

Timothy M Bahr, Vickie L Baer, Robin K Ohls, Thomas R Christensen, Diane M Ward, Sterling T Bennett, Robert D Christensen

Abstract read
PubMed Publisher
In one paragraph

Article in Journal of perinatology : official journal of the California Perinatal Association, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.5field-weighted citation impact, top 15% 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

10 citing papers in PubMed, 19 citations in OpenAlex.

  1. 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
  2. Hyperferritinemia among very-low-birthweight infants in Thailand: a prospective cohort study.Journal of perinatology : official journal of the California Perinatal Association · 2024
    Article
  3. Review
  4. Serum ferritin values in neonates <29 weeks' gestation are highly variable and do not correlate with reticulocyte hemoglobin content.Journal of perinatology : official journal of the California Perinatal Association · 2023
    Article
  5. Impact and interactions between risk factors on the iron status of at-risk neonates.Journal of perinatology : official journal of the California Perinatal Association · 2022
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. 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

7 authors at 3 institutions in 1 country.

Timothy M BahrDivision of Neonatology, University of Utah Health, Salt Lake City, UT, USA. tim.bahr@hsc.utah.edu.ORCID http://orcid.org/0000-0002-7946-0290
Vickie L BaerWomen and Newborns Research, Intermountain Healthcare, Murray, UT, USA.
Robin K OhlsDivision of Neonatology, University of Utah Health, Salt Lake City, UT, USA.
Thomas R ChristensenUniversity of Utah student, Salt Lake City, UT, USA.
Diane M WardDepartment of Pathology, University of Utah, Salt Lake City, UT, USA.
Sterling T BennettDepartment of Pathology, Intermountain Medical Center, Murray, UT, USA.ORCID http://orcid.org/0000-0002-5348-6185
Robert D ChristensenDivision of Neonatology, University of Utah Health, Salt Lake City, UT, USA.
University of Utah · USIntermountain Healthcare · USIntermountain Medical Center · US

Funding

Proteomics CoreU54DK110858 · NIDDK · UTAH STATE HIGHER EDUCATION SYSTEM--UNIVERSITY OF UTAH · PI Anna E Beaudin, JAMES Eric COX · 2016 to 2026
$8.6M
NIDDK NIH HHS U54 DK110858
6 · The paper itself

Abstract

objectiveTo determine why serum ferritin and reticulocyte hemoglobin (RET-He), drawn to assess neonatal iron sufficiency, sometimes have markedly discordant results. STUDY

designRetrospective records review of five NICUs over 28 months, identifying all patients with a ferritin and RET-He within 48 h. We examined records of all who had marked discordance (one value >95th % reference interval, the other <5th %).

resultsOf 190 paired ferritin and RET-He measurements, 16 (8%) were markedly discordant. Fifteen of the 16 discordant samples involved a high ferritin and a low RET-He. In these, low MCV and high %Micro-R, and low MCH and high %HYPO-He were present. In total, 8 of the 15 had laboratory or clinical evidence of an inflammatory process and five had suspicion of infection documented.

conclusionsWhen ferritin and RET-He were discordant, erythrocyte microcytosis and hypochromasia suggested that the RET-He gave the more accurate interpretation; that iron deficiency was likely present.

Indexed as

Anemia, Iron-DeficiencyReticulocytesFerritinsHemoglobinsHumansInfant, NewbornRetrospective StudiesFerritinsHemoglobins

Identifiers

PMID33012780
OpenAlexW3089539537

What OpenQuestion holds

Textmetadata
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.