Validation of the Korean Version of the Scale for Outcomes in Parkinson’s Disease-Autonomic

• Main Authors: Ji-Young Kim, In-Uk Song, Seong-Beom Koh, Tae-Beom Ahn, Sang Jin Kim, Sang-Myung Cheon, Jin Whan Cho, Yun Joong Kim, Hyeo-Il Ma, Mee-Young Park, Jong Sam Baik, Phil Hyu Lee, Sun Ju Chung, Jong-Min Kim, Han-Joon Kim, Young-Hee Sung, Do Young Kwon, Jae-Hyeok Lee, Jee-Young Lee, Ji Sun Kim, Ji Young Yun, Hee Jin Kim, Jin Young Hong, Mi-Jung Kim, Jinyoung Youn, Ji Seon Kim, Eung Seok Oh, Hui-Jun Yang, Won Tae Yoon, Sooyeoun You, Kyum-Yil Kwon, Hyung-Eun Park, Su-Yun Lee, Younsoo Kim, Hee-Tae Kim, Joong-Seok Kim
• Format: Article
• Language: English
• Published: Korean Movement Disorders Society 2017-01-01
• Series: Journal of Movement Disorders
• Subjects: Autonomic; Parkinson’s disease; Korean version; Scale for Outcomes in Parkinson’s disease-Autonomic
• Online Access: http://e-jmd.org/upload/jmd-16057.pdf

Objective Autonomic symptoms are commonly observed in patients with Parkinson’s disease (PD) and often limit the activities of daily living. The Scale for Outcomes in Parkinson’s disease-Autonomic (SCOPA-AUT) was developed to evaluate and quantify autonomic symptoms in PD. The goal of this study was to translate the original SCOPA-AUT, which was written in English, into Korean and to evaluate its reliability and validity for Korean PD patients. Methods For the translation, the following processes were performed: forward translation, backward translation, expert review, pretest of the pre-final version and development of the final Korean version of SCOPA-AUT (K-SCOPA-AUT). In total, 127 patients with PD from 31 movement disorder clinics of university-affiliated hospitals in Korea were enrolled in this study. All patients were assessed using the K-SCOPA-AUT and other motor, non-motor, and quality of life scores. Test-retest reliability for the K-SCOPA-AUT was assessed over a time interval of 10−14 days. Results The internal consistency and reliability of the K-SCOPA-AUT was 0.727 as measured by the mean Cronbach’s α-coefficient. The test-retest correlation reliability was 0.859 by the Guttman split-half coefficient. The total K-SCOPA-AUT score showed a positive correlation with other non-motor symptoms [the Korean version of non-motor symptom scale (K-NMSS)], activities of daily living (Unified Parkinson’s Disease Rating Scale part II) and quality of life [the Korean version of Parkinson’s Disease Quality of Life 39 (K-PDQ39)]. Conclusion The K-SCOPA-AUT had good reliability and validity for the assessment of autonomic dysfunction in Korean PD patients. Autonomic symptom severities were associated with many other motor and non-motor impairments and influenced quality of life.