Five-Year Symptom Trajectories in Nondialysis-Dependent CKD Patients.

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Faye, Moustapha | Legrand, Karine | Le Gall, Lisa | Leffondre, Karen | Omorou, Abdou Y. | Pinho, Natalia, Alencar De | Combe, Christian | Fouque, Denis | Jacquelinet, Christian | Laville, Maurice | Liabeuf, Sophie | Massy, Ziad A. | Speyer, Elodie | Pecoits Filho, Roberto | Stengel, Bénédicte | Frimat, Luc | Ayav, Carole

Edité par CCSD ; American Society of Nephrology -

International audience. BACKGROUND AND OBJECTIVES: Late stages of CKD are characterized by significant symptom burden. This study aimed to identify subgroups within the 5-year trajectories of symptom evolution in patients with CKD and to describe associated patient characteristics and outcomes. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: Among 2787 participants (66% men) with eGFR <60 ml/min per 1.73 m(2) enrolled in the CKD-Renal Epidemiology and Information Network (CKD-REIN) cohort study from July 2013 to May 2016, we assessed symptoms annually using the Kidney Disease Quality of Life-36 (KDQOL-36) questionnaire until December 2020. A total of 9121 measures were reported over follow-up; all participants had symptoms scored for at least one time point. We used a joint latent class-mixed model to distinguish profiles of symptom trajectories. RESULTS: Patient mean age (±SD) at baseline was 67±13 years, and mean eGFR was 33±13 ml/min per 1.73 m(2). The prevalence of each symptom ranged from 24% (chest pain) to 83% (fatigue), and 98% of participants reported at least one symptom. After a median (interquartile range) follow-up of 5.3 (3.4-6.0) years, 690 participants initiated KRT, and 490 died before KRT. We identified two profiles of symptom trajectories: a "worse symptom score and worsening trajectory" in 31% of participants, characterized by a low initial symptom score that worsened more than ten points over time, and a "better symptom score and stable trajectory" in 69% of participants, characterized by a high initial score that remained stable. Participants in the worse symptom score and worsening trajectory group had more risk factors for CKD progression at baseline, worse quality of life, and a higher risk of KRT and death before KRT than other participants. CONCLUSIONS: This study highlights a significant worsening of symptoms in about one third of the participants, whereas the majority reported low symptom severity throughout the study.

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