Thesis (M.Sc.In pharm)--Chulalongkorn University, 2009

The purpose of this study was to test reliability and validity of the KDQOL-SFTM version 1.3 by focus on kidney disease targeted items. Subjects were 191 outpatients with renal replacement therapy. Practicality was assessed with average time of administration and floor and ceiling effects. Reliability was evaluated by using intraclass correlation coefficients (ICCs) for test-retest reliability assessment with telephone interview and Cronbach’s alpha for internal consistency. Construct validity was supported with convergent and discriminant validity using correlation among SF-36, EQ-5D, overall health rating scale score, sociodemographic parameter and kidney disease targeted scores. Multitrait scaling method was used to test construct validity and known-groups validity that referred to ability to distinguish among dialysis and transplant patients. It was found that average time of administration approximately was 23 minutes. Cronbach’s alpha in dialysis and transplant groups ranging from 0.44 to 0.86 and 0.43 to 0.84, respectively. ICCs ranging from 0.531-0.952. There were significantly low to moderate correlations among SF-36, EQ-5D, overall health rating scale scores and kidney disease targeted scores. The direction of correlation between sociodemographic parameter and kidney disease targeted items was presented as hypothesis. Success scaling of convergent and discriminant validity in dialysis and transplant groups were 74.17% and 88.81%, 83.83% and 86.59%, respectively. In addition, the KDQOL-SFTM scores discriminated among dialysis and transplant groups (p<0.05). Conclusion, the KDQOL-SFTM version 1.3 has acceptable reliability and validity to be use to assess the health-related quality of life in renal replacement therapy Thai patients