Evidence map›Paper›PMID 28383532›Full record

ArticleJournal of perinatology : official journal of the California Perinatal Association2017

The immature platelet fraction: creating neonatal reference intervals and using these to categorize neonatal thrombocytopenias.

B C MacQueen, R D Christensen, E Henry, A M Romrell, T J Pysher, S T Bennett, M C Sola-Visner

Abstract read
In one paragraph

Article in Journal of perinatology : official journal of the California Perinatal Association, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
–field-weighted citation impact
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

13 citing papers in PubMed.

  1. A CBC drawn postnatally from umbilical cord blood can provide valuable diagnostic information for infants admitted to the NICU.Journal of perinatology : official journal of the California Perinatal Association · 2026
    Review
  2. Observational
  3. Implementing evidence-based restrictive neonatal intensive care unit platelet transfusion guidelines.Journal of perinatology : official journal of the California Perinatal Association · 2024
    Review
  4. Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. Development of gates to measure the immature platelet fraction in C57BL/6J mice using the Sysmex XN-V series multispecies hematology analyzer.Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc · 2021
    Article
  10. Article
  11. Review
  12. Article
  13. 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.

B C MacQueenDivision of Neonatology, Department of Pediatrics, University of Utah School of Medicine, Salt Lake City, UT, USA.
R D ChristensenDivision of Neonatology, Department of Pediatrics, University of Utah School of Medicine, Salt Lake City, UT, USA.
E HenryWomen and Newborn's Clinical Program, Intermountain Healthcare, Salt Lake City, UT, USA.
A M RomrellWomen and Newborn's Clinical Program, Intermountain Healthcare, Salt Lake City, UT, USA.
T J PysherDepartment of Pathology, University of Utah School of Medicine, Primary Children's Hospital, Salt Lake City, UT, USA.
S T BennettDepartment of Pathology, Intermountain Medical Center, Murray,UT, USA.
M C Sola-VisnerDivision of Newborn Medicine, Boston Children's Hospital and Harvard Medical School, Boston, MA, USA.

Funding

THE RoLE OF NEONATAL ANEMIA IN LEARNING AND MEMORYP01HL046925 · NHLBI · UNIVERSITY OF IOWA · PI SOLA-VISNER, MARTHA C. · 1992 to 2022
$34.3M
NHLBI NIH HHS P01 HL046925
6 · The paper itself

Abstract

objectiveThe immature platelet fraction (IPF) is a laboratory measurement analogous to the reticulocyte count, but reflecting the thrombopoietic state. Similar to a reticulocyte count, it can be expressed as a percent (IPF%=percent of platelets that are immature) or as an absolute number per μl blood; the immature platelet count (IPC=IPF% × platelets per μl of blood). STUDY

designUsing a retrospective analysis of de-identified data from non-thrombocytopenic neonates, we created reference intervals for IPF% and IPC. We then tested the value of these measurements for categorizing thrombocytopenic neonates.

resultsNew charts display reference intervals for IPF% and IPC on the day of birth according to gestational age, and during the first 90 days after birth. Neonates with hyporegenerative varieties of thrombocytopenias (syndromes, small for gestational age, birth asphyxia) had lower IPF% and IPC than did neonates with consumptive thrombocytopenias (immune-mediated, infection, disseminated intravascular coagulation, necrotizing enterocolitis; both P<0.0001).

conclusionThe new reference interval charts can be used to recognize abnormal IPFs. The IPF parameters can help clarify the kinetic mechanism responsible for thrombocytopenias in neonates.

Indexed as

Blood PlateletsFemaleGestational AgeHumansInfantInfant, NewbornMalePlatelet CountReference ValuesReproducibility of ResultsRetrospective StudiesThrombocytopenia, Neonatal Alloimmune

Identifiers

PMID28383532
PMCPMC6192246

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Registered trials

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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.