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The Capital Region of Denmark - a part of Copenhagen University Hospital
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Classification of death causes after transplantation (CLASS): Evaluation of methodology and initial results

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  1. Identification of the novel HLA allele, HLA-C*07:780, identified in a Danish woman

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Correct classification of death causes is an important component of transplant trials.We aimed to develop and validate a system to classify causes of death in hematopoietic stem cell (HSCT) and solid organ (SOT) transplant recipients.Case record forms (CRF) of fatal cases were completed, including investigator-designated cause of death. Deaths occurring in 2010 to 2013 were used for derivation; and were validated by deaths occurring in 2013 to 2015. Underlying cause of death (referred to as recorded underlying cause) was determined through a central adjudication process involving 2 external reviewers, and subsequently compared with the Danish National Death Cause Registry.Three hundred eighty-eight recipients died 2010 to 2015 (196 [51%] SOT and 192 [49%] HSCT). The main recorded underlying causes of death among SOT and HSCT were classified as cancer (20%, 48%), graft rejection/failure/graft-versus-host-disease (35%, 28%), and infections (20%, 11%). Kappa between the investigator-designated and the recorded underlying cause of death was 0.74 (95% CI 0.69-0.80) in derivation and comparable in the validation cohort. Death causes were concordant with the Danish National Death Cause Registry in 37.2% (95% CI 31.5-42.9) and 38.4% (95% CI 28.8-48.0) in the derivation and validation cohorts, respectively.We developed and validated a method to systematically and reliably classify the underlying cause of death among transplant recipients. There was a high degree of discordance between this classification and that in the Danish National Death Cause Registry.

Original languageEnglish
JournalMedicine (United States)
Volume97
Issue number29
Pages (from-to)e11564
ISSN0025-7974
DOIs
Publication statusPublished - Jul 2018

    Research areas

  • Adult, Aged, Cause of Death, Denmark, Female, Humans, Male, Middle Aged, Registries, Transplant Recipients/statistics & numerical data, Transplantation/mortality

ID: 55416631