Proper

Abstract

The aim of this study was to find out the optimal cut off scores of each neuropsychological test for dementia to diagnose MCI(mild cognitive impairment) by applying these tests to MCI group and analyzing validity of these tests. A total of 207 persons aged from 60 to 80 years who visited G National Mental Health Hospital in a provincial area to get an early examination for dementia from 1. June 2009 to 31. December 2012 were enrolled in this study. For this study were neuropsychological tests used where the results can be shown in Z-scores. The word list recall test (-0.15; 71.4% sensitivity, 74.2% specificity) got the highest optimal cut off score for MCI diagnosis (Z-score) All the tools were effective in screening but it's tests had different cut off scores. Therefore, it is necessary to make a comparison of sensitivity and specificity among the tests rather than a consistent cut off score on a clinical basis.