MO827: Clinical Characterization of Older People on Chronic Hemodialysis Nephrocare-Chile 2020–2021

Abstract BACKGROUND AND AIMS The Chilean population has experienced an accelerated demographic aging, expecting that by the year 2050, older people (60 years and over) [1] will reach 31.6% of the country's population [2]. In Chile, patients >60 years old on dialysis represent 53.6% of the total population with renal replacement therapy [3]. The objective of this work was to study the population of older people cared for in the NephroCare-Chile centers. METHOD A retrospective descriptive study, where the demographic and clinical characteristics of patients aged 60 years and over with chronic kidney disease on hemodialysis were analyzed, during the period January 2020–November 2021 in NephroCare-Chile dialysis network, distributed in 64 clinics, with information registered in Clinical Database- EuCliD [4]. Descriptive, association and/or dependency analyzes, and survival analyzes were performed using the Kaplan–Meier method, all this with Stata software. RESULTS A total of 6010 patients aged 60 years and over were studied, representing 60.8% of the total population attended in NephroCare-Chile for the period under study, who presented an average age of admission to dialysis of 66.2 ± 8.9 years, 57.6% of whom were men. Of this group, 5.3% were older than or equal to 85 years, and their average age at admission to dialysis was 82.0 ± 4.7 years, with statistically significant differences compared with the younger group (65.3 ± 8.2 years old). Of the older people studied (60 and over years), 52.5% were diabetic, 68% were hypertensive, 18.5% had malnutrition and 27.7% were at risk of malnutrition. At the end of the study period, the active vascular accesses were the Arteriovenous Fistula (54.1%) and Tunnelized Catheter (38.6%). A total of 82.7% of the cases had Albuminemia ≥3.5 g/dL, 67.6% had Hemoglobin levels ≥10 g/dL. Urea clearance estimated by Kt/V Single Pool revealed that 54.8% achieved Kt/Vsp ≥ 1.4. At the end of the study, 24% of the patients seen were deceased, at an average age of 72.4 ± 7.5 years. Of the patients seen who were older than or equal to 85 years, 40.0% were diabetic compared with the younger group (53.2%) (P