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Validity and Reliability of the Korean-Translated Version of the International Cooperative Ataxia Rating Scale in Cerebellar Ataxia
Jinse Park, Jin Whan Cho, Jinyoung Youn, Engseok Oh, Wooyoung Jang, Joong-Seok Kim, Yoon-Sang Oh, Hyungyoung Hwang, Chang-Hwan Ryu, Jin-Young Ahn, Jee-Young Lee, Seong-Beom Koh, Jae H. Park, Hee-Tae Kim
J Mov Disord. 2023;16(1):86-90.   Published online December 20, 2022
DOI: https://doi.org/10.14802/jmd.22137
  • 1,305 View
  • 82 Download
AbstractAbstract PDFSupplementary Material
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.
Investigation of Nocturnal Hypokinesia and Health-Related Quality of Life in Parkinsonian Patients with the Korean Version of the Nocturnal Hypokinesia Questionnaire
Ji-Hyun Choi, Jee-Young Lee, Chaewon Shin, Dallah Yoo, Jin Hee Im, Kyung Ah Woo, Han-Joon Kim, Tae-Beom Ahn, Jong-Min Kim, Beomseok Jeon
J Mov Disord. 2021;14(3):221-225.   Published online May 26, 2021
DOI: https://doi.org/10.14802/jmd.20172
  • 3,995 View
  • 69 Download
  • 1 Web of Science
  • 1 Crossref
AbstractAbstract PDFSupplementary Material
Objective
To assess nocturnal hypokinesia using the Korean version of the Nocturnal Hypokinesia Questionnaire (NHQ-K) in Parkinson’s disease (PD) patients across disease stages.
Methods
We developed the NHQ-K and performed questionnaire-based interviews with 108 PD patients from three referral hospitals. Clinical associations of nocturnal hypokinesia and its impact on health-related quality of life (HRQoL) were also analyzed.
Results
The NHQ-K showed acceptable internal consistency (0.83) and interrater reliability (0.95). Nocturnal hypokinesia significantly affected HRQoL in PD patients at both the early and advanced stages (adjusted p < 0.001). Increased severity of nocturnal hypokinesia was associated with dyskinesias, off-period disability, apathy, and anxious mood in PD patients (adjusted p < 0.01) after controlling for disease severity and medication dose.
Conclusion
The NHQ-K is useful for screening nocturnal hypokinesia in PD patients. Given the high impact of nocturnal hypokinesia on HRQoL, comprehensive management of nocturnal disability is needed for PD patients.

Citations

Citations to this article as recorded by  
  • Technological evaluation of strategies to get out of bed by people with Parkinson's disease: Insights from multisite wearable sensors
    Jirada Sringean, Chusak Thanawattano, Roongroj Bhidayasiri
    Frontiers in Medical Technology.2022;[Epub]     CrossRef
Original Article
Parkinson Anxiety Scale: A Validation Study for the Brazilian Population
Renilson Moraes-Ferreira, Wilson Mateus Gomes da Costa Alves, Maysa Alves Rodrigues Brandao-Rangel, Odilon Abrahin, Clebson Pantoja Pimentel, Evitom Correa-Sousa, Rodolfo Paula Vieira, Erik Artur Cortinhas-Alves
J Mov Disord. 2020;13(3):199-204.   Published online July 28, 2020
DOI: https://doi.org/10.14802/jmd.20031
  • 6,521 View
  • 158 Download
  • 1 Crossref
AbstractAbstract PDF
Objective
The Parkinson Anxiety Scale (PAS) was developed to measure the severity of anxiety symptoms in patients with Parkinson’s disease (PD), and it has not yet been adapted and validated in Portuguese. Thus, this study evaluated the reliability and validity of a translated and adapted version of the PAS for the Brazilian population of PD patients.
Methods
The Parkinson Anxiety Scale – Brazilian Version (PAS-BV) was completed by 55 patients with PD. The reliability (test-retest reliability, interrater reliability and internal consistency) and construct validity of the PAS-BV were assessed by comparing it with the Beck Anxiety Inventory (BAI), the Parkinson’s Disease Fatigue Scale (PFS) and the Unified Parkinson Disease Rating Scale (UPDRS) part III.
Results
Patients with PD had an average age of 64.51 ± 9.20 years and had PD for an average of 6.98 ± 5.02 years. The reliability of the PAS-BV was 0.83, and the intraclass correlation coefficient (ICC) (retest-test) was 0.88. The scale presented good convergent validity with the BAI (rs = 0.82, p < 0.05). It also presented good divergent validity with the PFS (rs = 0.24, p > 0.05) and the UPDRS part II (rs = -0.10, p > 0.05), part III (rs = -0.21, p > 0.05), and part IV (rs = 0.03, p > 0.05), as indicated by the absence of significant correlations. However, there was a significant correlation between the PAS-BV and part I of the UPDRS (rs = 0.67, p < 0.05).
Conclusion
The PAS-BV presents substantial reliability and validity for patients with PD without dementia.

Citations

Citations to this article as recorded by  
  • Should patients with Parkinson’s disease only visit a neurologist’s office? - a narrative review of neuropsychiatric disorders among people with Parkinson’s disease
    Julita Szarpak, Paulina Drożak, Michał Piwoński, Hubert Wróblewski, Justyna Morylowska-Topolska
    Current Problems of Psychiatry.2022; 23(4): 220.     CrossRef

JMD : Journal of Movement Disorders