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Subtypes of Sleep Disturbance in Parkinson's Disease Based on the Cross-Culturally Validated Korean Version of Parkinson's Disease Sleep Scale-2

Title
Subtypes of Sleep Disturbance in Parkinson's Disease Based on the Cross-Culturally Validated Korean Version of Parkinson's Disease Sleep Scale-2
Authors
Yang, Hui-JunKim, Han-JoonKoh, Seong-BeomKim, Joong-SeokAhn, Tae-BeomCheon, Sang-MyungCho, Jin WhanKim, Yoon-JoongMa, Hyeo-IlPark, Mee YoungBaik, Jong SamLee, Phil HyuChung, Sun JuKim, Jong-MinSong, In-UkKim, Ji-YoungSung, Young-HeeKwon, Do YoungLee, Jae-HyeokLee, Jee-YoungKim, Ji SeonYun, Ji YoungKim, Hee JinHong, Jin YongKim, Mi-JungYoun, JinyoungKim, Ji SunOh, Eung SeokYoon, Won TaeYou, SooyeounKwon, Kyum-YilPark, Hyung-EunLee, Su-YunKim, YounsooKim, Hee-TaeKim, Sang Jin
Ewha Authors
윤지영
Issue Date
2020
Journal Title
JOURNAL OF CLINICAL NEUROLOGY
ISSN
1738-6586JCR Link

2005-5013JCR Link
Citation
JOURNAL OF CLINICAL NEUROLOGY vol. 16, no. 1, pp. 66 - 74
Keywords
Parkinson diseasesleepParkinson's Disease Sleep Scale-2Korean versionvaliditylatent class analysis
Publisher
KOREAN NEUROLOGICAL ASSOC
Indexed
SCIE; SCOPUS; KCI WOS
Document Type
Article
Abstract
Background and Purpose This study aimed to determine the clinimetric properties of the Korean version of Parkinson's Disease Sleep Scale-2 (K-PDSS-2) and whether distinct subtypes of sleep disturbance can be empirically identified in patients with Parkinson's disease (PD) using the cross-culturally validated K-PDSS-2. Methods The internal consistency, test-retest reliability, scale precision, and convergent validity of K-PDSS-2 were assessed in a nationwide, multicenter study of 122 patients with PD. Latent class analysis (LCA) was used to derive subgroups of patients who experienced similar patterns of sleep-related problems and nocturnal disabilities. Results The total K-PDSS-2 score was 11.67 +/- 9.87 (mean +/- standard deviation) at baseline and 12.61 +/- 11.17 at the retest. Cronbach's a coefficients of the total K-PDSS-2 scores at baseline and follow-up were 0.851 and 0.880, respectively. The intraclass correlation coefficients over the 2-week study period ranged from 0.672 to 0.848. The total K-PDSS-2 score was strongly correlated with health-related quality of life measures and other corresponding nonmotor scales. LCA revealed three distinct subtypes of sleep disturbance in the study patients: "less-troubled sleepers:," "PD-related nocturnal difficulties," and "disturbed sleepers". Conclusions K-PDSS-2 showed good clinimetric attributes in accordance with previous studies that employed the original version of the PDSS-2, therefore confirming the cross-cultural usefulness of the scale. This study has further documented the first application of an LCA approach for identifying subtypes of sleep disturbance in patients with PD.
DOI
10.3988/jcn.2020.16.1.66
Appears in Collections:
의과대학 > 의학과 > Journal papers
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