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Dano S, Pokarowski M, Liao B, Tang E, Ekundayo O, Li V, Edwards N, Ford H, Novak M, Mucsi I. Evaluating symptom burden in kidney transplant recipients: validation of the revised Edmonton Symptom Assessment System for kidney transplant recipients - a single-center, cross-sectional study. Transpl Int 2020; 33:423-436. [PMID: 31919903 DOI: 10.1111/tri.13572] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 09/20/2019] [Accepted: 01/06/2020] [Indexed: 12/14/2022]
Abstract
We assessed the validity of the Edmonton Symptom Assessment System (ESAS-r) in kidney transplant recipients (KTR). A cross-sectional sample of 252 KTR was recruited. Individual ESAS-r symptom scores and symptom domain scores were evaluated. Internal consistency, convergent validity, and construct validity were assessed with Cronbach's α, Spearman's rank correlations, and a priori-defined risk group comparisons. Mean (SD) age was 51 (16), 58% were male, and 58% Caucasian. ESAS-r Physical, Emotional, and Global Symptom Scores demonstrated good internal consistency (α > 0.8 for all). ESAS-r Physical and Global Symptom Scores strongly correlated with PHQ-9 scores (0.72, 95% CI: 0.64-0.78 and 0.74, 95% CI: 0.67-0.80). For a priori-defined risk groups, individual ESAS-r symptom score differed between groups with lower versus higher eGFR [pain: 1 (0-3) vs. 0 (0-2), delta = 0.18; tiredness: 3 (1-5) vs. 1.5 (0-4), delta = 0.21] and lower versus higher hemoglobin [tiredness: 3 (1-6) vs. 2 (0-4), delta = 0.27]. ESAS-r Global and Physical Symptom Scores differed between groups with lower versus higher hemoglobin [13 (6-29) vs. 6.5 (0-18.5), delta = 0.3, and 9 (2-19) vs. 4 (0-13), delta = 0.24] and lower versus higher eGFR [11 (4-20) vs. 6.5 (2-13), delta = 0.21, and 7 (2-16) vs. 3 (0-9), delta = 0.26]. These data support reliability and construct validity of ESAS-r in KTR. Future studies should explore its clinical utility for symptom assessment among KTR.
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Affiliation(s)
- Sumaya Dano
- Multi-Organ Transplant Program, Division of Nephrology University Health Network, University of Toronto, Toronto, ON, Canada
| | - Martha Pokarowski
- Multi-Organ Transplant Program, Division of Nephrology University Health Network, University of Toronto, Toronto, ON, Canada
| | - Betty Liao
- Multi-Organ Transplant Program, Division of Nephrology University Health Network, University of Toronto, Toronto, ON, Canada
| | - Evan Tang
- Multi-Organ Transplant Program, Division of Nephrology University Health Network, University of Toronto, Toronto, ON, Canada
| | - Oladapo Ekundayo
- Multi-Organ Transplant Program, Division of Nephrology University Health Network, University of Toronto, Toronto, ON, Canada
| | - Vernon Li
- Multi-Organ Transplant Program, Division of Nephrology University Health Network, University of Toronto, Toronto, ON, Canada
| | - Nathaniel Edwards
- Multi-Organ Transplant Program, Division of Nephrology University Health Network, University of Toronto, Toronto, ON, Canada
| | - Heather Ford
- Multi-Organ Transplant Program, Division of Nephrology University Health Network, University of Toronto, Toronto, ON, Canada
| | - Marta Novak
- Centre for Mental Health, University Health Network, Toronto, ON, Canada.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Istvan Mucsi
- Multi-Organ Transplant Program, Division of Nephrology University Health Network, University of Toronto, Toronto, ON, Canada
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