Please use this identifier to cite or link to this item: https://doi.org/10.1007/s40271-013-0015-2
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dc.titleValidation of the english version of the kidney disease quality of life questionnaire (KDQOL-36) in haemodialysis patients in Singapore
dc.contributor.authorYang, F.
dc.contributor.authorWang, V.W.
dc.contributor.authorJoshi, V.D.
dc.contributor.authorLau, T.W.L.
dc.contributor.authorLuo, N.
dc.date.accessioned2014-11-26T02:13:20Z
dc.date.available2014-11-26T02:13:20Z
dc.date.issued2013-06
dc.identifier.citationYang, F., Wang, V.W., Joshi, V.D., Lau, T.W.L., Luo, N. (2013-06). Validation of the english version of the kidney disease quality of life questionnaire (KDQOL-36) in haemodialysis patients in Singapore. Patient 6 (2) : 135-141. ScholarBank@NUS Repository. https://doi.org/10.1007/s40271-013-0015-2
dc.identifier.issn11781653
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/108825
dc.description.abstractBackground: To validate a widely used health outcomes instrument for patients with chronic kidney disease and on dialysis, the Kidney Disease Quality of Life questionnaire (KDQOL-36), in English-speaking haemodialysis patients in Singapore. Methods: This study is a secondary data analysis using the KDQOL-SF (version 1.3) data collected from a cross-sectional survey of haemodialysis patients in Singapore. Cronbach's α was used to test internal consistency reliability. Multi-item scales were assessed using item-to-scale correlation and factor analysis. Both confirmatory and exploratory factor analyses were performed separately for generic and disease-targeted scales. Construct validity was assessed by correlation between disease-targeted and generic scales. Criterion validity was assessed by correlation of the physical component summary (PCS-12) and mental component summary (MCS-12) from KDQOL-36 with the corresponding PCS-36 and MCS-36 from the KDQOL-SF. Results: Three hundred ninety-four patients who completed the interviews in English [male 55.8 %, mean age (SD) 52.4 (11.7) years] were involved. Kidney disease scales exhibited desirable internal consistency (Cronbach's α 0.822-0.906) and item-to-scale correlation (range 0.763-0.903), and a three-factor model fit the data well [comparative fit index (CFI) 0.934, root mean square error of approximation (RMSEA) 0.085]. For the generic Short Form 12 Health Survey (SF-12) items, a two-factor model (physical and mental) showed poor overall fit, but a three-factor structure (role, physical and mental functions) achieved good model fit (CFI 0.999, RMSEA 0.027). Correlation between disease-targeted and generic scales was weak to moderate (range 0.286-0.418). Correlation between SF-12 and SF-36 was 0.750 for PCS and 0.797 for MCS. Conclusion: The English version of the KDQOL-36 appears to be reliable and valid to measure quality of life for haemodialysis patients in Singapore. © 2013 Springer International Publishing Switzerland.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1007/s40271-013-0015-2
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentSAW SWEE HOCK SCHOOL OF PUBLIC HEALTH
dc.description.doi10.1007/s40271-013-0015-2
dc.description.sourcetitlePatient
dc.description.volume6
dc.description.issue2
dc.description.page135-141
dc.identifier.isiut000320012400008
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