title: A Malaysian Study on the reliability and validity of the Health-Related Quality of Life Questionnaire (HRQOL-20) in urological patients.
abstract: Main objective of this study is to validate the Health-Related Quality of Life (HRQOL-20) in the Malaysian population. Reliability and internal consistency were evaluated using the test-retest method and Cronbach's alpha. Responsiveness was expressed as the effect size. Internal consistency was excellent (Cronbach's alpha value = 0.68 to 0.87). Test-retest correlation coefficients and intraclass correlation coefficient were significant (ICC = 0.58 and 0.91) as well as the high degree of sensitivity and specificity. The HRQOL-20 is a reliable, valid and sensitive to clinical changes in the Malaysian urological population.
authors.affiliation: Health Research Development Unit, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur.
authors.forename: K F
authors.initials: KF
authors.lastname: Quek
authors.forename: W Y
authors.initials: WY
authors.lastname: Low
authors.forename: A H
authors.initials: AH
authors.lastname: Razack
authors.forename: C S
authors.initials: CS
authors.lastname: Loh
mesh_terms: D000368:Aged; D006304:Health Status; D006801:Humans; D008296:Malaysia; D008875:Middle Aged; D011788:Quality of Life; D012680:Sensitivity and Specificity; D011795:Surveys and Questionnaires / Q000592:standards*; D014570:Urologic Diseases / Q000503:physiopathology*