Validation of the Korean-Version of the Nonmotor Symptoms Scale for Parkinson's Disease
- Authors
- Koh, Seong-Beom; Kim, Jae Woo; Ma, Hyeo-Il; Ahn, Tae-Beom; Cho, Jin Whan; Lee, Phil Hyu; Chung, Sun Ju; Kim, Joong-Seok; Kwon, Do Young; Baik, Jong Sam
- Issue Date
- 12월-2012
- Publisher
- KOREAN NEUROLOGICAL ASSOC
- Keywords
- Parkinson' s disease; non-motor symptoms scale; validation
- Citation
- JOURNAL OF CLINICAL NEUROLOGY, v.8, no.4, pp.276 - 283
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF CLINICAL NEUROLOGY
- Volume
- 8
- Number
- 4
- Start Page
- 276
- End Page
- 283
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/106798
- DOI
- 10.3988/jcn.2012.8.4.276
- ISSN
- 1738-6586
- Abstract
- Background and Purpose Non-motor symptoms are common in Parkinson's disease (PD), and are the primary cause of disability in many PD patients. Our aim in this study was to translate the origin non-motor symptoms scale for PD (NMSS), which was written in English, into Korean (K-NMSS), and to evaluate its reliability and validity for use with Korean-speaking patients with PD. Methods In total, 102 patients with PD from 9 movement disorders sections of university teaching hospitals in Korea were enrolled in this study. They were assessed using the K-NMSS, the Unified Parkinson's Disease Rating Scale (UPDRS), the Korean version of the Mini-Mental Status Examination (K-MMSE), the Korean version of the Montgomery-Asberg Depression Rating Scale (K-MADS), the Epworth Sleepiness Scale (ESS), and Parkinson's Disease Questionnaire 39 (PDQ39). Test-retest reliability was assessed over a time interval of 10-14 days in all but one patient. Results The K-NMSS was adininistered to 102 patients with PD. The internal consistency and reliability of this tool was 0.742 (mean Cronbach's alpha-coefficient). The test-retest correlation reliability was 0.941 (Guttman split-half coefficient). There was a moderate correlation between the total K-NMSS score and the scores for UPDRS part I [Spearman's rank correlation coefficient, (rS)=0.521, p<0.001] and UPDRS part IT (rS=0.464, p=0.001), but there was only a weak correlation between the total K-NMSS score and the UPDRS part III score (rS=0.288, p=0.003). The total K-NMSS score was significantly correlated with the K-MADS (rS=0.594, p<0.001), K-MMSE (rS=-0.291, p=0.003), and ESS (rS=0.348,p<0.001). The total K-NMSS score was also significantly and positively correlated with the PDQ39 score (rS=0.814,p<0.001). Conclusions The K-NMSS exhibited good reliability and validity for the assessment of non-motor symptoms in Korean PD patients. J Clin Neurol 2012;8:276-283
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