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Registration on the Renal Transplantation Waiting List and Mortality on Dialysis: an Analysis of the French REIN Registry Using a Multi-state Model

Abstract : Abstract Background: Access to the renal transplantation (RT) waiting list depends on factors related to lower mortality rates and often occurs after dialysis initiation. The aim of the study was to use a flexible regression model to determine if registration on the RT waiting list is associated with mortality on dialysis, independent of the comorbidities associated with such registration. Methods: Data from the French REIN registry on 7138 incident hemodialysis (HD) patients were analyzed. A multi-state model including four states (‘HD, not wait-listed’, ‘HD, wait-listed’, ‘death’, and ‘RT’) was used to estimate the effect of being wait-listed on the probability of death. Results: During the study, 1392 (19.5%) patients were wait-listed. Of the 2954 deaths observed in the entire cohort during follow-up, 2921 (98.9%) were observed in the not wait-listed group compared with only 33 (1.1%) in the wait-listed group. In the multivariable analysis, the adjusted hazard ratio for death associated with non-registration on the waiting list was 3.52 (95% CI, 1.70–7.30). The risk factors for death identified for not wait-listed patients were not found to be significant risk factors for wait-listed patients, with the exception of age. Conclusions: The use of a multi-state model allowed a flexible analysis of mortality on dialysis. Patients who were not wait-listed had a much higher risk of death, regardless of co-morbidities associated with being wait-listed, and did not share the same risk factors of death as wait-listed patients. Registration on the waiting list should therefore be taken into account in survival analysis of patients on dialysis.
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https://hal.univ-lille.fr/hal-02513551
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Soumis le : vendredi 20 mars 2020 - 17:26:18
Dernière modification le : mardi 24 mars 2020 - 11:16:20

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Jean-Baptiste Beuscart, Dominique Pagniez, Eric Boulanger, Alain Duhamel. Registration on the Renal Transplantation Waiting List and Mortality on Dialysis: an Analysis of the French REIN Registry Using a Multi-state Model. Journal of Epidemiology, Japan Epidemiological Association, 2015, 25 (2), pp.133-141. ⟨10.2188/jea.JE20130193⟩. ⟨hal-02513551⟩

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