Subtypes of Sleep Disturbance in Parkinson’s Disease Based on the Cross-Culturally Validated Korean Version of Parkinson’s Disease Sleep Scale-2
- Hui-Jun Yang; Han-Joon Kim; Seong-Beom Koh; Joong-Seok Kim; Tae-Beom Ahn; Sang-Myung Cheon; Jin Whan Cho; Yoon-Joong Kim; Hyeo-Il Ma; Mee Young Park; Jong Sam Baik; Phil Hyu Lee; Sun Ju Chung; Jong-Min Kim; In-Uk Song; Ji-Young Kim; Young-Hee Sung; Do Young Kwon; Jae-Hyeok Lee; Jee-Young Lee; Ji Seon Kim; Ji Young Yun; Hee Jin Kim; Jin Yong Hong; Mi-Jung Kim; Jinyoung Youn; Ji Sun Kim; Eung Seok Oh; Won Tae Yoon; Sooyeoun You; Kyum-Yil Kwon; Hyung-Eun Park; Su-Yun Lee; Younsoo Kim; Hee-Tae Kim; Sang Jin Kim
- Dept. of Neurology (신경과학)
- Issue Date
- Journal of Clinical Neurology, Vol.16(1) : 66-74, 2020
- 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.
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.
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 α 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.”
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.
- Parkinson disease; sleep; Parkinson's Disease Sleep Scale-2; Korean version; validity; latent class analysis
- Appears in Collections:
- 1. Journal Papers (연구논문) > 1. School of Medicine (의과대학) > Dept. of Neurology (신경과학)
- Keimyung Author(s)
- Full Text
- File in this Item
- oak-2020-0006.pdf(270.82 kB)Download
- RIS (EndNote)
- XLS (Excel)