Evidence map›Paper›PMID 41093291›Full record

ArticleVox sanguinis2026

Exploring low haemoglobin density as a no-added-cost screening marker to assess iron deficiency.

Jesse Qiao, Sherif Rezk, Gagan Mathur

Abstract read
In one paragraph

Article in Vox sanguinis, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

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3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. 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

3 authors.

Jesse QiaoDepartment of Pathology and Laboratory Medicine, University of California, Irvine, Orange, California, USA.
Sherif RezkDepartment of Pathology and Laboratory Medicine, University of California, Irvine, Orange, California, USA.
Gagan MathurDepartment of Pathology and Laboratory Medicine, University of California, Irvine, Orange, California, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectivesIron deficiency (ID), with or without anaemia, affects over 1 billion people globally. Early detection is essential, but current diagnostic tools may be costly, logistically complex and not widely accessible. This study evaluates low haemoglobin density percentage (LHD%), derived from mean corpuscular haemoglobin concentration (MCHC) in routine complete blood counts (CBCs), as a no-added-cost, accessible alternative for ID screening. MATERIALS AND

methodsWe retrospectively analysed 3526 adult patient records (January-April 2025) from a single-centre institution, including those with iron panel and CBC performed within 24 h. Patients were categorized as Normal, ID, ID anaemia (IDA) or anaemia without ID (AwoID). LHD% was calculated and assessed across groups using receiver operating characteristic (ROC) curve analyses for cutoff determinations.

resultsMedian LHD% increased progressively from the Normal group (2.99%) to the IDA group (6.71%). ROC analysis showed modest but acceptable diagnostic performance: area under the curve (AUC) was 0.677 overall, 0.687 in non-anaemic and 0.684 in anaemic subjects. Specific LHD% cutoffs varied by context: >4.48% for general screening (61% sensitivity, 67% specificity), >7.02% for donor screening (95% specificity) and >3.74% for anaemia workup (75% sensitivity).

conclusionLHD% shows potential as a context-specific, no-added-cost screening tool for ID using existing CBC data. While its diagnostic performance is modest, its scalability and accessibility could support broader public health screening efforts. Further prospective validation is recommended.

Indexed as

Anemia, Iron-DeficiencyHemoglobinsIron DeficienciesMass ScreeningAdultAgedBiomarkersErythrocyte IndicesFemaleHumansMaleMiddle AgedRetrospective StudiesBiomarkersHemoglobinsIDAiron deficiencyiron screeningLHDlow haemoglobin density

Identifiers

PMID41093291
PMCPMC12803769

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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.