A sleep-based risk model for predicting dementia: Development and validation in a Korean cohort
BackgroundDementia is a major public health challenge, yet existing prediction models often overlook sleep-related symptoms, despite their known links to cognitive decline.ObjectiveTo develop and validate a four-year Dementia Risk Score (DRS) incorporating self-reported sleep-related symptoms with demographic and clinical factors to predict all-cause dementia, including Alzheimer's disease.MethodsData from 3082 Korean adults aged 60-79 years were analyzed. Predictors were selected using LASSO regression and included in a multivariate logistic regression model. A point-based scoring system, the DRS, was constructed from the model coefficients. Internal validation was conducted using bootstrapping and a separate dataset.ResultsThe DRS achieved robust predictive performance, with AUC values of 0.824 in the training set and 0.826 in the validation set. Key predictors included sleep disturbance, use of sleep medications, daytime dysfunction, leg discomfort, and urge to move legs.ConclusionsThe DRS provides a practical, scalable tool for predicting dementia risk, supporting community-based screening and early intervention. External validation is needed to confirm its broader applicability.
Authors
- Shin Gyeom Kim (ORCID: https://orcid.org/0000-0001-8196-655X)
- Eunji Lim (ORCID: https://orcid.org/0000-0003-3967-8524)
- Hyukjun Lee (ORCID: https://orcid.org/0009-0004-7511-5272)
- Seok Woo Moon (ORCID: https://orcid.org/0000-0002-1074-8122)
- Seok Bum Lee (ORCID: https://orcid.org/0000-0002-5481-4697)
- Seung‐Ho Ryu (ORCID: https://orcid.org/0000-0001-8057-8723)
- J.H. Jhoo (ORCID: https://orcid.org/0000-0002-8147-5782)
- Kyung Phil Kwak (ORCID: https://orcid.org/0000-0003-4555-0105)
- Ki Woong Kim (ORCID: https://orcid.org/0000-0002-1103-3858)
- Jeong Lan Kim (ORCID: https://orcid.org/0000-0002-6554-4637)
- Hee Won Yang (ORCID: https://orcid.org/0000-0002-2460-1869)
- Ji Won Han (ORCID: https://orcid.org/0000-0003-2418-4257)
- Joon Hyuk Park (ORCID: https://orcid.org/0000-0002-0396-5284)
- Bong‐Jo Kim (ORCID: https://orcid.org/0000-0003-2419-7306)
- Dae Jong Oh (ORCID: https://orcid.org/0000-0002-0195-3490)
- Seung Wan Suh (ORCID: https://orcid.org/0000-0003-3190-0354)
- Dong Woo Lee (ORCID: https://orcid.org/0000-0002-6383-1974)
- Jung Jae Lee (ORCID: https://orcid.org/0000-0002-0828-3557)
- Jin Hee Shin (ORCID: https://orcid.org/0000-0002-5742-3384)
Institutions
- Seoul National University (KR)
- Changwon National University (KR)
- Gyeongsang National University (KR)
- Chungnam National University (KR)
- Dongguk University (KR)
- Konkuk University (KR)
- Soonchunhyang University (KR)
- Seoul National University Bundang Hospital (KR)
- Konkuk University Medical Center (KR)
- Kangbuk Samsung Hospital (KR)
- Kangwon National University Hospital (KR)
- Inje University Sanggye Paik Hospital (KR)
- Dr Youth Clinic (KR)
- Chungnam National University Hospital (KR)
- Jeju National University Hospital (KR)
- Dankook University Hospital (KR)
- Dongguk University WISE
- Bucheon University (KR)
- Sungkyunkwan University (KR)
Publication Details
- Journal
- Journal of Alzheimer s Disease
- Published
- 2025-05-08
- DOI
- https://doi.org/10.1177/13872877251340094
- Citations
- 2
- Primary Topic
- Sleep and related disorders
- Type
- article
- Field-Weighted Citation Impact
- 4.24