Evidence map›Paper›PMID 32525543›Full record

ArticleAmerican journal of clinical pathology2020

CALIPER Hematology Reference Standards (II).

Victoria Higgins, Houman Tahmasebi, Mary Kathryn Bohn, Alexandra Hall, Khosrow Adeli

Open access · greenAbstract read
In one paragraph

Article in American journal of clinical pathology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.1field-weighted citation impact, top 23% 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

9 citing papers in PubMed, 21 citations in OpenAlex.

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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

5 authors at 2 institutions in 1 country.

Victoria HigginsCALIPER Program, Pediatric Laboratory Medicine, The Hospital for Sick Children, Toronto, Canada.
Houman TahmasebiCALIPER Program, Pediatric Laboratory Medicine, The Hospital for Sick Children, Toronto, Canada.
Mary Kathryn BohnCALIPER Program, Pediatric Laboratory Medicine, The Hospital for Sick Children, Toronto, Canada.
Alexandra HallCALIPER Program, Pediatric Laboratory Medicine, The Hospital for Sick Children, Toronto, Canada.
Khosrow AdeliCALIPER Program, Pediatric Laboratory Medicine, The Hospital for Sick Children, Toronto, Canada.
University of Toronto · CAHospital for Sick Children · CA

Funding

CIHR 353989
6 · The paper itself

Abstract

objectivesThe objective of this study was to establish comprehensive age- and sex-specific reference intervals for hematologic parameters in the CALIPER cohort of healthy children and adolescents.

methodsA total of 536 healthy children and adolescents (birth to 21 years) were recruited with informed consent, and whole blood samples were analyzed for 27 hematologic parameters on the Beckman Coulter DxH 520 system. Age- and sex-specific pediatric reference standards were established. Reference values obtained on the DxH 520 were also compared with data obtained on a larger laboratory-based instrument (DxH 900).

resultsMost hematologic parameters showed significant age- and/or sex-specific changes during growth and development. Of the 27 hematologic parameters, all except four (mean corpuscular hemoglobin concentration, basophil percentage, low hemoglobin density, immature cell percentage) required age partitioning, and eight required sex partitioning.

conclusionsThis study establishes a robust pediatric hematology reference database that will assist in more accurate test result interpretation. Our data clearly demonstrate significant variation in hematologic parameter concentrations in children and adolescents, necessitating the use of pediatric-specific reference standards.

Indexed as

AdolescentAge FactorsBasophilsChildChild, PreschoolFemaleHematologyHemoglobinsHumansInfantInfant, NewbornMaleReference StandardsSex FactorsYoung AdultHemoglobinsBeckman CoulterCALIPERHematologyPediatricReference intervals

Identifiers

PMID32525543
PMCPMC7403758
OpenAlexW3033363134

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.