Reliability of the Kannada Version of the Knee Injury and Osteoarthritis Outcome Score: A Cross-sectional Study
Introduction: The Knee Injury and Osteoarthritis Outcome Score (KOOS) is a valid and reliable tool for assessing knee injury and osteoarthritis (OA). It has been cross-culturally adapted into several Indian languages. However, the reliability of the Kannada translation of the KOOS scale has not...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
JCDR Research and Publications Private Limited
2023-09-01
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| Series: | Journal of Clinical and Diagnostic Research |
| Subjects: | |
| Online Access: | https://www.jcdr.net/articles/PDF/18458/65605_CE[Ra1]_F[SL]_PF1(AKA_SS)_QC(KK_IS)_PFA(AKA_KM)_PN(KM).pdf |
| Summary: | Introduction: The Knee Injury and Osteoarthritis Outcome Score
(KOOS) is a valid and reliable tool for assessing knee injury and
osteoarthritis (OA). It has been cross-culturally adapted into
several Indian languages. However, the reliability of the Kannada
translation of the KOOS scale has not been established.
Aim: The aim of this study was to confirm the reliability of the
Kannada translation of the KOOS scale and to assess the interrater and test-retest reliability of the culturally adapted KOOS
outcome measure.
Materials and Methods: A cross-sectional study was
conducted involving 74 patients diagnosed with OA. All patients
were asked to complete the KOOS questionnaire. To test interrater reliability, two raters completed the questionnaire, while for
test-retest reliability, one rater was involved. The procedure was
repeated after a week. The scores of both questionnaires were
then compared to check the inter-rater and test-retest reliability
of the cross-culturally adapted KOOS outcome measure.
Cronbach’s Alpha and the Intraclass Correlation Coefficient
(ICC) were utilised to determine the scale’s reliability.
Results: The entire scale demonstrated high reliability, with an
ICC ranging from 0.96 to 0.98 for all subscales. The domainwise and overall Cronbach’s Alpha values were >0.70. There
was agreement between the raters (p<0.01) and test-retest
data (p<0.01) for pain and activities of daily living items. Highly
significant correlations were also observed between test-retest
data for all items related to sport and recreation function and
knee-related quality of life (p<0.001).
Conclusion: The Cronbach’s Alpha values obtained for all
domains of the scale were >0.70, indicating the scale’s reliability.
Additionally, the scale demonstrated consistency as the ICC
was determined to be substantial. |
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| ISSN: | 2249-782X 0973-709X |