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A Malaysian Study on the reliability and validity of the Health-Related Quality of Life Questionnaire (HRQOL-20) in urological patients

Quek KF 1 , Low WY 2 , Razack AH 3 , Loh CS 4

Affiliations 

  • 1 K F Quek, MPhil. Health Research Development Unit, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur
  • 2 W Y Low, PhD. Health Research Development Unit, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur
  • 3 A H Razack, FRCS. Department of Surgery, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur
  • 4 C S Loh, FRCS (Urol). Sunway Medical Centre and Gleneagles Intan Medical Centre
Med J Malaysia, 2001 Sep;56(3):293-301.
PMID: 11732073

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.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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