Frailty and physical function in chronic kidney disease: the CanFIT study
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Date
2015-09-05
Authors
Walker, Simon R
Brar, Ranveer
Eng, Frederick
Komenda, Paul
Rigatto, Claudio
Prasad, Bhanu
Bohm, Clara J
Storsley, Leroy J
Tangri, Navdeep
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Abstract
Abstract
Background
Frailty, a manifestation of unsuccessful aging, is highly prevalent in people with chronic kidney disease (CKD) and is associated with comorbid conditions in cross-sectional studies. Longitudinal studies investigating the progression of frailty in those with advanced non-dialysis CKD are lacking.
Objectives
Canadian Frailty Observation and Interventions Trial (CanFIT). To determine the natural history, prevalence of perceived and measured frailty and its association with dialysis treatment choices and adverse outcomes in patients with advanced CKD.
Design
Longitudinal observational study, designed to collect data from 600 participants over 2 years.
Setting
Interprofessional non-dialysis CKD clinics at four tertiary health care centres in central Canada.
Patients
People with CKD stage 4 and 5 (eGFR <30 ml/min/1.73 m2) who are not on dialysis at enrollment.
Measurements
Multiple Frailty Definitions: Short Physical Performance Battery (SPPB), Fried Frailty Criteria, Frailty Index. Dialysis start: In-Centre Hemodialysis, Home Hemodialysis or Peritoneal Dialysis Outcomes: Death, Opt-out or Lost to follow up.
Methods
We will perform physical and cognitive assessments annually. We plan to analyze the relationships between frailty, treatment choices and patient centered outcomes.
Results
We have recruited 217 participants in 2 centres; of these, 56 % had reduced physical function at baseline, as defined by the SPPB. Risk of reduced physical function was 8 fold higher in those with diabetes after adjusting for age, gender, eGFR and comorbidities.
Limitations
Referred population, use of SPPB as a measure of frailty, inter-operator variability in measurement of hand grip and gait speed, cross-sectional analysis of baseline data in the subset recruited to date.
Conclusions
People with advanced CKD have a high burden of reduced physical function, especially those with diabetes. We will continue enrollment into the CanFIT study to further understand the clinical history of CKD and frailty in this population.
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Citation
Canadian Journal of Kidney Health and Disease. 2015 Sep 05;2(1):32