Learning Objective 1: To understand the psychometric properties of the WHOQOL-BREF and KDQOL-36.
Learning Objective 2: To understand the strengths and the weakness of the WHOQOL-BREF and KDQOL-36 when administered to CKD patients.
Methods: Patients over 20 years of age and diagnosed of CKD were recruited. CKD was then staged according to the eGFR and we subdivided patients into two groups with the early stage for those with eGFR of 30-90 ml/min/1.73m2 and the late stage for those with eGFR less than 30 ml/min/1.73m2. QOL was assessed by the WHOQOL-BREF and the KDQOL-36. Demographic characteristics and medical data were also obtained.
Results: The study is in progress. Descriptive statistics will express as frequencies and percentage or as mean± SD. Analysis of variance will be investigated. Simple regression will be used to examine whether there is a linear trend between CKD stages and the domain scores. The psychometric properties of the two scales will also be evaluated. A multitrait-multimethod correlation matrix (MTMM) will be used to evaluate the relationship between the domains of the two scales and to test for the correlation among CKD stage.
Conclusion: The WHOQOL-BREF may be more applicable to CKD patients with early stage while the KDQOL-36 may be more sensitive in predicting renal function impairment and thus suitable for measuring QOL of CKD patients in the late stage.
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