• Namiko A Goto, Ismay N van Loon, Franciscus T J Boereboom, Marielle H Emmelot-Vonk, Hanna C Willems, Michiel L Bots, Laila E Gamadia, Eric F H van Bommel, Peter J G Van de Ven, Caroline E Douma, Hieronymus H Vincent, Yvonne C Schrama, Joy Lips, Ellen K Hoogeveen, Machiel A Siezenga, Alferso C Abrahams, Marianne C Verhaar, and Marije E Hamaker.
• Dianet Dialysis Center, Utrecht, The Netherlands; n.a.goto@umcutrecht.nl.
• Clin J Am Soc Nephrol. 2019 Jul 5; 14 (7): 1039-1047.

Background And ObjectivesLittle is known about the functional course after initiating dialysis in elderly patients with ESKD. The aim of this study was to assess the association of the initiation of dialysis in an elderly population with functional status and caregiver burden.Design, Setting, Participants & MeasurementsThis study included participants aged ≥65 years with ESKD who were enrolled in the Geriatric Assessment in Older Patients Starting Dialysis study. All underwent a geriatric assessment and a frailty screening (Fried Frailty Index and Groningen Frailty Indicator) at dialysis initiation. Functional status (activities of daily life and instrumental activities of daily life) and caregiver burden were assessed at baseline and after 6 months. Decline was defined as loss of one or more domains in functional status, stable as no difference between baseline and follow-up, and improvement as gain of one or more domains in functional status. Logistic regression was performed to assess the association between the combined outcome functional decline/death and potential risk factors.ResultsOf the 196 included participants functional data were available for 187 participants. Mean age was 75±7 years and 33% were women. At the start of dialysis, 79% were care dependent in functional status. After 6 months, 40% experienced a decline in functional status, 34% remained stable, 18% improved, and 8% died. The prevalence of high caregiver burden increased from 23%-38% (P=0.004). In the multivariable analysis age (odds ratio, 1.05; 95% confidence interval, 1.00 to 1.10 per year older at baseline) and a high Groningen Frailty Indicator compared with low score (odds ratio, 1.97; 95% confidence interval, 1.05 to 3.68) were associated with functional decline/death.ConclusionsIn patients aged ≥65 years, functional decline within the first 6 months after initiating dialysis is highly prevalent. The risk is higher in older and frail patients. Loss in functional status was mainly driven by decline in instrumental activities of daily life. Moreover, initiation of dialysis is accompanied by an increase in caregiver burden.Copyright © 2019 by the American Society of Nephrology.

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