Kyte, D., Fletcher, B., Horton, M. orcid.org/0000-0002-6675-7335 et al. (12 more authors) (2025) Development, Rasch analysis and validation of the kidney symptom burden questionnaire (KSB-Q). Clinical Kidney Journal, 18 (5). sfaf112. ISSN 2048-8505
Abstract
Background Increasingly, patient-reported outcome measures (PROMs) are used to monitor chronic kidney disease (CKD) symptoms in routine clinical practice. However, such symptom measurement currently requires completion of multiple, often lengthy, PROMs, which may lead to questionnaire fatigue, lower levels of completion, and missing data. Moreover, many CKD-specific PROMs lack evidence of important measurement properties and few were developed using contemporary psychometric methods. The study objective was to develop and validate a short-form kidney symptom burden questionnaire (KSB-Q).
Methods A cross-sectional item pool survey was distributed to adults (≥18 years) with CKD stages 3–5 [including individuals not receiving kidney replacement therapy (KRT), those receiving dialysis and those with a functioning kidney transplant] in England (Birmingham, London, Sheffield, and Nottingham) from March to September 2022. Rasch measurement was used to assess the psychometric properties of the item pool. Cognitive debriefing interviews were conducted to evaluate content validity.
Results In total, 419/1464 participants responded (29% response rate), with 28% receiving dialysis and 30% in receipt of a kidney transplant. Rasch analysis indicated that nine items, one for each of nine symptom domains (fatigue, pain, memory/concentration, poor sleep, skin problems, gastrointestinal problems, dizziness, restless legs, and shortness of breath), formed a PROM with strong psychometric properties (including statistically acceptable reliability, test–retest reliability, and validity). Cognitive debriefing and survey responses confirmed content validity encompassing relevance, comprehensiveness, and clarity.
Conclusions The KSB-Q is a nine-item PROM measuring somatic symptoms. The KSB-Q demonstrates strong psychometric properties in patients with CKD stages 3–5, including those not receiving KRT, individuals receiving dialysis, and those with a functioning kidney transplant.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © The Author(s) 2025. This is an open access article under the terms of the Creative Commons Attribution License (CC-BY-NC 4.0). |
Keywords: | chronic kidney disease, measurement properties, patient-reported outcomes, Rasch analysis |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Medicine and Health (Leeds) > School of Medicine (Leeds) |
Funding Information: | Funder Grant number Kidney Research UK Account Ref: UNI008 Not Known |
Depositing User: | Symplectic Publications |
Date Deposited: | 10 Apr 2025 09:26 |
Last Modified: | 29 May 2025 14:59 |
Status: | Published online |
Publisher: | Oxford University Press |
Identification Number: | 10.1093/ckj/sfaf112 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:225337 |