Reliability and Validity of a Short Form of the Korean Dementia Screening Questionnaire-Cognition
Journal of Clinical Neurology
;
: 145-153, 2020.
Article
in English
| WPRIM
| ID: wpr-782064
ABSTRACT
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+activities 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, KDSQC-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.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Self-Assessment
/
Mass Screening
/
Reproducibility of Results
/
ROC Curve
/
Cognition
/
Area Under Curve
/
Dementia
/
Self Report
/
Cognitive Dysfunction
/
Memory
Type of study:
Diagnostic study
/
Prognostic study
/
Screening study
Limits:
Humans
Language:
English
Journal:
Journal of Clinical Neurology
Year:
2020
Type:
Article
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