title: Psychometric Properties of the Kidney Disease Quality of Life-36 Questionnaire (KDQOL-36™).
abstract: The Kidney Disease Quality of Life-36 Questionnaire (KDQOL-36™), modified by RAND, has been widely used for measurement of quality of life among hemodialysis or peritoneal dialysis patients. The purpose of this study was to refine and evaluate, by using confirmatory factor analysis, the structure of the KDQOL-36™ when the questionnaire was used to evaluate chronic kidney disease patients in Stages 1 to 5 in Taiwan. The psychometric properties of the translated version were determined among Mandarin-speaking adults (N = 428). Because the sample data did not fit the hypothetical model, one item was deleted and nine error terms were estimated. After improving the model fit, the modified model was presented as follows: χ(2) = 1390.903, χ(2)/df = 2.711, p < .001, goodness-of-fit index = .833, adjusted goodness-of-fit index = .806, root mean square error of approximation = .063. According to the study results, the researchers suggest that because of content overlap, some items may be deducted from the KDQOL-36™.
authors.affiliation: Fooyin University, Kaohsiung, Taiwan National Cheng Kung University, Tainan, Taiwan.
authors.forename: Shumei
authors.initials: S
authors.lastname: Chao
authors.affiliation: National Cheng Kung University, Tainan, Taiwan miaofen@mail.ncku.edu.tw.
authors.forename: Miaofen
authors.initials: M
authors.lastname: Yen
authors.affiliation: Ditmanson Medical Foundation Chia-Yi Christian Hospital, Taiwan.
authors.forename: Tzu-Chia
authors.initials: TC
authors.lastname: Lin
authors.affiliation: National Cheng Kung University, Tainan, Taiwan.
authors.forename: Junne-Ming
authors.initials: JM
authors.lastname: Sung
authors.affiliation: National Cheng Kung University, Tainan, Taiwan.
authors.forename: Ming-Cheng
authors.initials: MC
authors.lastname: Wang
authors.affiliation: E-Da Hospital, Kaohsiung, Taiwan I-Shou University, Kaohsiung, Taiwan.
authors.forename: Shih-Yuan
authors.initials: SY
authors.lastname: Hung
mesh_terms: D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D007676:Kidney Failure, Chronic / Q000523:psychology* / Q000628:therapy; D008297:Male; D008875:Middle Aged; D015233:Models, Statistical; D011594:Psychometrics; D011788:Quality of Life / Q000523:psychology*; D006435:Renal Dialysis / Q000523:psychology; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires; D013624:Taiwan
keywords: KDQOL-36™; chronic kidney disease; confirmatory factor analysis; quality of life