Dement Neurocogn Disord.
2024 Oct;23(4):224-235. 10.12779/dnd.2024.23.4.224.
Development of the Diagnostic Matrix of the Seoul Cognitive Status Test, Compared to Traditional Paper-andPencil Neuropsychological Tests
- Affiliations
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- 1Department of Neurology, Incheon St. Mary’s Hospital, The Catholic University of Korea, Incheon, Korea
- 2Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
- 3Beaubrain Healthcare Co., Ltd., Seoul, Korea
- 4Department of Neurology, Inje University College of Medicine, Haeundae Paik Hospital, Busan, Korea
- 5Department of Neurology, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Yangsan, Korea
- 6Department of Neurology, Gyeongsang National University Changwon Hospital, Changwon, Korea
- 7Alzheimer’s Disease Convergence Research Center, Samsung Medical Center, Seoul, Korea
- 8Neuroscience Center, Samsung Medical Center, Seoul, Korea
- 9Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences & Technology (SAIHST), Sungkyunkwan University, Seoul, Korea
- 10Department of Neurology, Happymind Clinic, Seoul, Korea
- 11Department of Neurology, Kangwon National University Hospital, Kangwon National University College of Medicine, Chuncheon, Korea
- 12Department of Neurology, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
- KMID: 2560833
- DOI: http://doi.org/10.12779/dnd.2024.23.4.224
Abstract
- Background and Purpose
We aimed to develop the diagnostic matrix of the Seoul Cognitive Status Test (SCST) and compare its performance with traditional paper-and-pencil neuropsychological tests, including the Seoul Neuropsychological Screening Battery-II (SNSB-II) and the Korean version of the Consortium to Establish a Registry for Alzheimer’s Disease (CERAD-K).
Methods
We recruited 197 participants from the head-to-head SCST-SNSB cohort, and 204 participants from the head-to-head SCST-CERAD cohort. They underwent either SNSB-II or CERAD-K, in addition to SCST. The diagnostic matrix was developed by combining cognitive function, determined by neuropsychological tests, and activities of daily living (ADL), determined by Instrumental-ADL scales.
Results
The diagnostic agreement between the SCST and the SNSB-II was 83.9% (weighted kappa=0.87). The agreement between the SCST and the CERAD-K was 84.3% (weighted kappa=0.88). In the SCST-SNSB cohort, all differences in SCST scores between the cognitively unimpaired (CU), mild cognitive impairment (MCI), and dementia diagnosed with the SNSB-II were significant in all cognitive domains (all p<0.01), except for the executive domain between CU and MCI (p=0.145). In the SCST-CERAD cohort, all differences in SCST scores between the 3 groups diagnosed with the CERAD-K were significant in all cognitive domains (all p<0.01), except for the language and visuospatial domains between MCI and dementia (p=0.169 and p=0.778, respectively).
Conclusions
Our findings suggest that the tablet-based SCST may be another option to traditional paper-and-pencil neuropsychological tests, especially in situations where time and space are relatively limited, and neuropsychological testing specialists are not available.
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