The aim of this study was to examine the clinical efficacy of the Korean Dementia Rating Scale(K-DRS) as a diagnostic tool for dementia alzheimer type(DAT). The participants were 20 patients with DAT and 54 health control(HC) who were sampled in Seoul. Age and education levels of DAT group were comparable to HC group. The result of K-DRS score revealed significant mean difference between DAT and HC in total score and memory, executive function, conceptualization and attention subscales. Two groups divided by cutoff scores of K-DRS manual with 35% sensitivity and 98.1% specificity. Sensitivity and specificity increased up to 85% and 98.1% respectively, when we divided two groups by a logistic regression equation. These results suggest that the K-DRS has clinical utility in the diagnosis for dementia of Alzheimer type.
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