Evidence map›Paper›PMID 30633813›Full record

ArticleTransfusion2019

Elevated risk for iron depletion in high-school age blood donors.

Bryan R Spencer, Walter Bialkowski, Darryl V Creel, Ritchard G Cable, Joseph E Kiss, Mars Stone, Christopher McClure, Steven Kleinman, Simone A Glynn, Alan E Mast and 1 more

Open access · greenAbstract read
In one paragraph

Article in Transfusion, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
13.9field-weighted citation impact, top 1% 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

15 citing papers in PubMed, 49 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Article
  4. Article
  5. Diagnostics: Markers of Body Iron Status.Advances in experimental medicine and biology · 2025
    Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Long-Term Course of Haemoglobin and Ferritin Values in High-Frequency Donors of Whole Blood and Double Erythrocyte Apheresis.Transfusion medicine and hemotherapy : offizielles Organ der Deutschen Gesellschaft fur Transfusionsmedizin und Immunhamatologie · 2021
    Article
  11. Article
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  14. Review
  15. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 8 institutions in 2 countries.

Bryan R SpencerAmerican Red Cross, Scientific Affairs, Dedham, Massachusetts.
Walter BialkowskiBlood Research Institute, BloodCenter of Wisconsin, Milwaukee, Wisconsin.
Darryl V CreelRTI International, Rockville, Maryland.
Ritchard G CableAmerican Red Cross, Scientific Affairs, Farmington, Connecticut.
Joseph E KissInstitute for Transfusion Medicine, Pittsburgh, Pennsylvania.
Mars StoneBlood Systems Research Institute, San Francisco, California.ORCID 0000-0001-5619-2767
Christopher McClureRTI International, Rockville, Maryland.
Steven KleinmanUniversity of British Columbia, Victoria, British Columbia, Canada.
Simone A GlynnNational Heart, Lung, and Blood Institute, Bethesda, Maryland.
Alan E MastBlood Research Institute, BloodCenter of Wisconsin, Milwaukee, Wisconsin.
National Heart, Lung, and Blood Institute Recipient Epidemiology and Donor Evaluation Study-III (REDS-III) Program
American Red Cross · USRTI International · USBlood Systems Research Institute · USInstitute for Transfusion Medicine · USMedical College of Wisconsin · USNational Heart Lung and Blood Institute · USUniversity of British Columbia · CAVersiti Blood Center of Wisconsin · US

Funding

NHLBI NIH HHS HHSN268201100001INHLBI NIH HHS HHSN268201100002INHLBI NIH HHS HHSN268201100003INHLBI NIH HHS HHSN268201100004INHLBI NIH HHS HHSN268201100005CNHLBI NIH HHS HHSN268201100005GNHLBI NIH HHS HHSN268201100005INHLBI NIH HHS HHSN268201100006CNHLBI NIH HHS HHSN268201100006INHLBI NIH HHS HHSN268201100007INHLBI NIH HHS HHSN268201100008INHLBI NIH HHS HHSN268201100009IWHI NIH HHS HHSN268201100001CWHI NIH HHS HHSN268201100002CWHI NIH HHS HHSN268201100003CWHI NIH HHS HHSN268201100004C
6 · The paper itself

Abstract

backgroundHigh school students 16 to 18 years-old contribute 10% of the US blood supply. Mitigating iron depletion in these donors is important because they continue to undergo physical and neurocognitive development. STUDY DESIGN AND

methodsStudy objectives were to determine the prevalence of iron depletion in 16- to 18-year-old donors and whether their risk for iron depletion was greater than adult donors. Successful, age-eligible donors were enrolled from high school blood drives at two large US blood centers. Plasma ferritin testing was performed with ferritin less than 12 ng/mL as our primary measure of iron depletion and ferritin less than 26 ng/mL a secondary measure. Multivariable repeated-measures logistic regression models evaluated the role of age and other demographic/donation factors.

resultsFerritin was measured from 4265 enrollment donations September to November 2015 and 1954 follow-up donations through May 2016. At enrollment, prevalence of ferritin less than 12 ng/mL in teenagers was 1% in males and 18% in females making their first blood donation, and 8% in males and 33% in females with prior donations. Adjusted odds for ferritin less than 12 ng/mL were 2.1 to 2.8 times greater in 16- to 18-year-olds than in 19- to 49-year-olds, and for ferritin less than 26 ng/mL were 3.3- to 4.7-fold higher in 16- to 18-year-olds. Progression to hemoglobin deferral was twice as likely in 16- to 18-year-old versus 19- to 49-year-old females.

conclusionAge 16 to 18 years-old is an independent risk factor for iron deficiency in blood donors at any donation frequency. Blood centers should implement alternate eligibility criteria or additional safety measures to protect teenage donors from iron depletion.

Indexed as

AdolescentAdultBlood DonorsFemaleFerritinsHumansIronLogistic ModelsMaleMiddle AgedMonte Carlo MethodMultivariate AnalysisRisk FactorsYoung AdultFerritinsIron

Identifiers

PMID30633813
PMCPMC6499707
OpenAlexW2909458703

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.