J Mov Disord.
2023 Jan;16(1):86-90. 10.14802/jmd.22137.
Validity and Reliability of the Korean-Translated Version of the International Cooperative Ataxia Rating Scale in Cerebellar Ataxia
- Park J
1 - Cho JW2,3
- Youn J2,3
- Oh E4
- Jang W5
- Kim JS6
- Oh YS6
- Hwang H1
- Ryu CH7
- Ahn JY8
- Lee JY9
- Koh SB10
- Park JH11
- Kim HT12*
- Affiliations
-
- 1Department of Neurology, Inje University Haeundae Paik Hospital, Busan, Korea
- 2Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
- 3Neuroscience Center, Samsung Medical Center, Seoul, Korea
- 4Department of Neurology, Chungnam National University Hospital, Chungnam National University College of Medicine, Daejeon, Korea
- 5Department of Neurology, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Korea
- 6Department of Neurology, College of Medicine, The Catholic University of Korea, Seoul, Korea
- 7Department of Neurology, H+ Yangji Hospital, Seoul, Korea
- 8Department of Neurology, Seoul Medical Center, Seoul, Korea
- 9Department of Neurology, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
- 10Department of Neurology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
- 11KoAm Education Alliance, Seoul, Korea
- 12Department of Neurology, Hanyang University College of Medicine, Seoul, Korea
- KMID: 2539025
- DOI: http://doi.org/10.14802/jmd.22137
Abstract
Objective
The International Cooperative Ataxia Rating Scale (ICARS) is a semiquantitative clinical scale for ataxia that is widely used in numerous countries. The purpose of this study was to investigate the validity and reliability of the Korean-translated version of the ICARS.
Methods
Eighty-eight patients who presented with cerebellar ataxia were enrolled. We investigated the construct validity using exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). We also investigated the internal consistency using Cronbach’s α and intrarater and interrater reliability using intraclass correlation coefficients.
Results
The Korean-translated ICARS showed satisfactory construct validity using EFA and CFA. It also revealed good interrater and intrarater reliability and showed acceptable internal consistency. However, subscale 4 for assessing oculomotor disorder showed moderate internal consistency.
Conclusion
This is the first report to investigate the validity and reliability of the Korean-translated ICARS. Our results showed excellent construct and convergent validity. The reliability is also acceptable.
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