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Reliability and Validity of a Short Form of the Korean Dementia Screening Questionnaire-Cognition

Title
Reliability and Validity of a Short Form of the Korean Dementia Screening Questionnaire-Cognition
Authors
Kim, AhroKim, SangYunPark, Kyung WonPark, Kee HyungYoun, Young ChulLee, Dong WooLee, Jun YoungLee, Jun HongJeong, Jee HyangChoi, Seong HyeHan, Hyun JeongKim, SemiNa, SeungheePark, MisunYim, Hyeon WooYang, Dong Won
Ewha Authors
정지향
SCOPUS Author ID
정지향scopus
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. 145 - 153
Keywords
cognitiondementiaself reportself-assessmentquestionnaire
Publisher
KOREAN NEUROLOGICAL ASSOC
Indexed
SCIE; SCOPUS; KCI WOS scopus
Document Type
Article
Abstract
Background and Purpose We aimed to determine the reliability and validity of a short form of the Korean Dementia Screening Questionnaire-Cognition (KDSQ-C) as a screening tool for cognitive dysfunction. Methods This study recruited 420 patients older than 65 years and their informants from 11 hospitals, and categorized the patients into normal cognition, mild cognitive impairment, and dementia subgroups. The KDSQ-C was completed separately by the patients and their informants. We abstracted three components of the KDSQ-C and combined these components into the following four subscales: KDSQ-C-I (items 1-5, memory domain), KDSQ-C-II (items 1-5 & 11-15, memory domain+activities of daily living), KDSQ-C-III (items 1-5 & 6-10, memory domain+other cognitive domains), and KDSQ-C-IV (items 6-10 & 11-15, other cognitive domains-Factivities of daily living). The reliability and validity were compared between these four subscales. Results A receiver operating characteristic (ROC) analysis of questionnaire scores provided by the patients showed that the areas under the ROC curves (AUCs) for the KDSQ-C, KDSQ-C-I, and KDSQ-C-II for diagnosing dementia were 0.75, 0.72, and 0.76, respectively; the corresponding AUCs for informant-completed questionnaires were 0.92, 0.89, and 0.92, indicating good discriminability for dementia. Conclusions A short form of the patient- and informant-rated versions of the KDSQ-C (KDSQ-C-II) is as capable as the 15-item KDSQ-C in screening for dementia.
DOI
10.3988/jcn.2020.16.1.145
Appears in Collections:
의과대학 > 의학과 > Journal papers
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