Evidence map›Paper›PMID 32547241›Full record

ArticleClinical epidemiology2020

Increasing Incidence and Prevalence of Acquired Hemolytic Anemias in Denmark, 1980-2016.

Dennis Lund Hansen, Sören Möller, Kjeld Andersen, David Gaist, Henrik Frederiksen

Abstract read
In one paragraph

Article in Clinical epidemiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 2 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

33 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Pulmonary Involvement in Autoimmune-Mediated Disease.Deutsches Arzteblatt international · 2025
    Review
  6. Article
  7. Article
  8. Article
  9. Insight Into Aetiology and Severity of Hemolysis Associated with Immunoproteins on Red Cell Surface in Direct Antiglobulin Test Positive Auto-immune Hemolytic Anemia.Indian journal of hematology & blood transfusion : an official journal of Indian Society of Hematology and Blood Transfusion · 2025
    Article
  10. Article
  11. Article
  12. Autoimmune haemolytic anaemias.Nature reviews. Disease primers · 2024
    Review
  13. Article
  14. Article
  15. Observational
  16. Review
  17. Review
  18. Article
  19. Article
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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.

Dennis Lund HansenDepartment of Clinical Research, University of Southern Denmark, Odense, Denmark.ORCID 0000-0002-4478-1297
Sören MöllerDepartment of Clinical Research, University of Southern Denmark, Odense, Denmark.ORCID 0000-0003-0858-4269
Kjeld AndersenDepartment of Clinical Research, University of Southern Denmark, Odense, Denmark.ORCID 0000-0003-0456-5634
David GaistDepartment of Clinical Research, University of Southern Denmark, Odense, Denmark.ORCID 0000-0001-5205-7007
Henrik FrederiksenDepartment of Clinical Research, University of Southern Denmark, Odense, Denmark.ORCID 0000-0001-8905-0220

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAcquired hemolytic disorders-autoimmune hemolytic anemia (AIHA), cold agglutinin disease (CAD), paroxysmal nocturnal hemoglobinuria (PNH), drug-induced hemolysis (DIHA), and acquired hemolysis not otherwise specified (AHNOS)-are considered rare. Despite their potentially major health implications, data regarding their incidence and prevalence are scarce.

methodsTo fill this gap we collected data regarding all patients with acquired hemolytic disorder diagnoses in 1977-2016 from the Danish National Patient Register. These data were linked with vital and migration status information from the Danish Civil Registration System. From these data combined with annual demographic data for the background population, we calculated age- and sex-specific incidence rates and prevalence proportions of acquired hemolytic disorders for specified time periods.

resultsOur analysis included 5868 patients with acquired hemolytic disorders (2715 with AIHA, 112 CAD, 397 DIHA, 116 PNH, and 2154 AHNOS). The incidence rates per 100 000 person-years in 1980-1993 and 2008-2016 were 0.81 and 1.77 for AIHA, 0.31 and 0.12 for DIHA, and 0.04 and 0.08 for PNH, respectively. The 2008-2016 CAD incidence rate was 0.18/100 000 person-years, CAD diagnosis code was not defined before 1994. All incidence rates increased with age. The prevalence proportion per 100 000 persons in 1980 and 2015 was 2.52 and 17.01 for AIHA, 0.80 and 1.50 for DIHA, and 0.18 and 1.04 for PNH. CAD prevalence in 2015 was 1.04/100 000 persons.

conclusionAcquired hemolytic anemia incidence rates and prevalence proportions with the exception of DIHA are markedly increasing.

Indexed as

autoimmune hemolytic anemiacold agglutinin diseasedrug-induced hemolytic anemiaincidenceparoxysmal nocturnal hemoglobinuriaprevalence

Identifiers

PMID32547241
PMCPMC7250289

What Socratic holds

Textmetadata
LicenceCC BY-NC
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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 Socratic graph.