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Assessment of cognitive impairment

MD Minh-Tung Do
HV Huong Vu
JL Jong-Koo Lee
SP Sang-Min Park
JS Joung-Sik Son
HK Hyun-Duck Kim
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The Mini-Mental State Exam (MMSE) is a widely used screening tool for cognitive function [20]. The Korean version (MMSE-KC) was developed as a part of the Korean version of the Consortium to Establish a Registry for Alzheimer’s Disease Assessment Packet [21]. The MMSE-KC contains 19 items adding up to 30 points (10 points for orientation, 6 points for verbal memory, 5 points for concentration and calculation, 5 points for language, 3 points for praxis, 1 point for visuospatial construction), with higher scores indicating better cognitive performance. Because of the high prevalence of illiteracy in elderly Koreans, two items focusing on judgment ability replaced the reading and writing items of the original version of MMSE in the MMSE-KC. The MMSE-KC showed adequate diagnostic accuracy for moderate dementia, with an area under the receiver operating characteristic curve of approximately 0.9. The total score was used to determine cognitive impairment (≤ 23 points) and non-cognitive impairment (> 23 points) according to the previous studies [22, 23].

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