Evidence map›Paper›PMID 30010940›Full record

ArticleNephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association2018

Association between serum ferritin and mortality: findings from the USA, Japan and European Dialysis Outcomes and Practice Patterns Study.

Angelo Karaboyas, Hal Morgenstern, Ronald L Pisoni, Jarcy Zee, Raymond Vanholder, Stefan H Jacobson, Masaaki Inaba, Lisa C Loram, Friedrich K Port, Bruce M Robinson

Abstract readMulticenter Study
In one paragraph

Article in Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 1 pooled it
–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

39 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Predictors of iron versus erythropoietin responsiveness in anemic hemodialysis patients.Hemodialysis international. International Symposium on Home Hemodialysis · 2022
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  14. Gut microbial metabolites SCFAs and chronic kidney disease.Journal of translational medicine · 2024
    Review
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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

10 authors.

Angelo KaraboyasArbor Research Collaborative for Health, Ann Arbor, MI, USA.
Hal MorgensternDepartments of Epidemiology and Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, USA.
Ronald L PisoniArbor Research Collaborative for Health, Ann Arbor, MI, USA.
Jarcy ZeeArbor Research Collaborative for Health, Ann Arbor, MI, USA.
Raymond VanholderDepartment of Nephrology, University Hospital Ghent, Ghent, Belgium.
Stefan H JacobsonKarolinska Institutet, Danderyd University Hospital, Division of Nephrology, Stockholm, Sweden.
Masaaki InabaDepartment of Metabolism, Endocrinology and Molecular Medicine, Osaka City University Graduate School of Medicine, Osaka, Japan.
Lisa C LoramKeryx Biopharmaceuticals, Boston, MA, USA.
Friedrich K PortDepartment of Internal Medicine, University of Michigan, Ann Arbor, MI, USA.
Bruce M RobinsonArbor Research Collaborative for Health, Ann Arbor, MI, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: The Kidney Disease: Improving Global Outcomes guidelines have cautioned against administering intravenous (IV) iron to hemodialysis patients with high serum ferritin levels due to safety concerns, but prior research has shown that the association between high ferritin and mortality could be attributed to confounding by malnutrition and inflammation. Our goal was to better understand the ferritin-mortality association and relative influence of IV iron and inflammation in the USA, where ferritin levels have recently increased dramatically, and in Europe and Japan, where ferritin levels are lower and anemia management practices differ. Methods: Data from 18 261 patients in Phases 4 and 5 (2009-15) of the international Dialysis Outcomes and Practice Patterns Study, a prospective cohort study, were analyzed. Using Cox regression, we modeled the association between baseline ferritin and 1-year mortality with restricted cubic splines and assessed the impact of potential confounders. Results: Median ferritin levels were 718 ng/mL in the USA, 405 in Europe and 83 in Japan. High ferritin levels were associated with elevated mortality (relative to region-specific medians) in all three regions. The strength of this association was attenuated more by adjustment for malnutrition and inflammation than by IV iron and erythropoiesis-stimulating agent dose in each region. Conclusion: The utility of high ferritin as a biomarker for clinical risk due to excess iron stores may be limited, although caution regarding IV iron dosing to higher upper ferritin targets remains warranted. Research to resolve biomarker criteria for iron dosing, and whether optimal anemia management strategies differ internationally, is still needed.

Indexed as

Administration, IntravenousAgedAnemiaBiomarkersEuropeFemaleFerritinsFollow-Up StudiesHumansIronJapanKidney Failure, ChronicMaleMiddle AgedProspective StudiesRenal DialysisBiomarkersFerritinsIron

Identifiers

PMID30010940
PMCPMC6275147

What OpenQuestion holds

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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.