Evidence map›Paper›PMID 32533600›Full record

ArticleTransfusion2020

First results of a ferritin-based blood donor deferral policy in the Netherlands.

Marieke Vinkenoog, Katja van den Hurk, Marian van Kraaij, Matthijs van Leeuwen, Mart P Janssen

Abstract read
In one paragraph

Article in Transfusion, 2020. 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
–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

15 citing papers in PubMed.

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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.

Marieke VinkenoogDonor Medicine Research, Sanquin Research, Amsterdam, The Netherlands.ORCID 0000-0001-5653-8078
Katja van den HurkDonor Medicine Research, Sanquin Research, Amsterdam, The Netherlands.
Marian van KraaijTransfusion Medicine, Sanquin Blood Bank, Amsterdam, The Netherlands.
Matthijs van LeeuwenLeiden Institute of Advanced Computer Science, Leiden University, Leiden, The Netherlands.
Mart P JanssenDonor Medicine Research, Sanquin Research, Amsterdam, The Netherlands.ORCID 0000-0002-1682-7817

Funding

Sanquin Blood Supply Foundation PPO 18-14/L2337
6 · The paper itself

Abstract

backgroundWhole blood donors are at risk of becoming iron deficient. To monitor iron stores, Sanquin implemented a new deferral policy based on ferritin levels, in addition to the traditional hemoglobin measurements.

methodsFerritin levels are determined in every fifth donation, as well as in all first-time donors. Donors with ferritin levels <15 ng/mL (WHO threshold) are deferred for 12 months; those ≥15 and ≤30 ng/mL for 6 months. The first results were analyzed and are presented here.

resultsThe results show that 25% of women (N = 20151, 95% CI 24%-25%) and 1.6% of men (N = 10391, 95% CI 1.4%-1.8%) have ferritin levels ≤30 ng/mL at their first blood center visit. For repeat (non-first-time) donors, these proportions are higher: 53% of women (N = 28329, 95% CI 52%-54%) and 42% of men (N = 31089, 95% CI 41%-43%). After a 6-month deferral, in 88% of returning women (N = 3059, 95% CI 87%-89%) and 99% of returning men (N = 3736, 95% CI 98%-99%) ferritin levels were ≥15 ng/mL. After a 12-month deferral, in 74% of returning women (N = 486, 95% CI 70%-78%) and 95% of returning men (N = 479, 95% CI 94%-97%) ferritin levels increased to ≥15 ng/mL.

conclusionDeferral of donors whose pre-donation ferritin levels were ≤30 ng/mL might prevent donors from returning with ferritin levels <15 ng/mL. This policy is promising to mitigate effects of repeated donations on iron stores.

Indexed as

Blood DonorsDonor SelectionHealth PolicyAdolescentAdultFemaleFerritinsHumansIronMaleMiddle AgedNetherlandsFerritinsIron

Identifiers

PMID32533600
PMCPMC7496980

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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.