Please use this identifier to cite or link to this item:
Title: Cross-cultural adaptation and validation of the Hong Kong version of the Knee injury and Osteoarthritis Outcome Score (HK-KOOS) for patients with knee osteoarthritis
Authors: Cheng, ASK 
Chan, KC
Chan, SY
Fan, MK
Fung, MK
Lee, OY
Kwok, CTT 
Wong, JKK
Issue Date: 2019
Publisher: Wiley
Source: Occupational therapy international, 2019, 8270637 How to cite?
Journal: Fashion and textiles 
Abstract: Introduction. This study aimed to validate the Hong Kong version of the Knee Injury and Osteoarthritis Outcome Score (HK-KOOS) for patients with knee osteoarthritis.
Methods. Content validity was assessed using the Item and Scale Content Validity Index (I-CVI and S-CVI). Test-retest reliability and internal consistency were assessed by the Intraclass Correlation Coefficient (ICC) and Cronbach's alpha. Dimensionality was assessed by performing exploratory factor analysis (EFA). Convergent and Divergent Validity was performed by examining the correlation between the HK-KOOS and the Chinese version of the Short Form 12 (SF-12) Health Survey, the Chinese Modified Barthel Index (C-MBI), and the Visual Analogue Scale for Pain (VAS-Pain). Ceiling and floor effects were also examined.
Results. A total of 125 participants were recruited in this study. In general, all instructions, items, and response options were considered as understandable, indicating a satisfactory cross-cultural adaptation. The I-CVI and S-CVI scores were 0.80-1 and 0.90-1, respectively, indicating excellent content validity in terms of relevance, representativeness, and understandability. The test-retest reliability of all HK-KOOS subscales was satisfactory with ICC exceeding 0.70 for all domains. Cronbach's alpha exceeded 0.80 for all subscales, indicating satisfactory internal consistency. Medium to strong correlations were found between the HK-KOOS and the VAS-Pain, SF-12, and C-MBI. However, factor analysis indicated a seven-factor structure, rather than the original five-factor structure. Items on pain and activities of daily living were loaded in the same factors. A floor effect was present in the sports and recreation subscale.
Discussion and Conclusions. Future studies should further examine the dimensionality of the KOOS. The HK-KOOS is a culturally adapted, reliable, and valid outcome measure instrument to be used in Hong Kong patients with primary knee osteoarthritis.
ISSN: 0966-7903
EISSN: 1557-0703
DOI: 10.1155/2019/8270637
Rights: Copyright © 2019 Andy S. K. Cheng et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
The following publication Andy S. K. Cheng, Ka-chun Chan, Sum-yuet Chan, et al., “Cross-Cultural Adaptation and Validation of the Hong Kong Version of the Knee Injury and Osteoarthritis Outcome Score (HK-KOOS) for Patients with Knee Osteoarthritis,” Occupational Therapy International, vol. 2019, Article ID 8270637, 9 pages, 2019, is available at
Appears in Collections:Journal/Magazine Article

Files in This Item:
File Description SizeFormat 
Cheng_Cross-cultural_adaptation_validation.pdf1.49 MBAdobe PDFView/Open
View full-text via PolyU eLinks SFX Query
Show full item record
PIRA download icon_1.1View/Download Contents

Page view(s)

Citations as of Feb 12, 2020


Citations as of Feb 12, 2020

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.