Comparison of the clock drawing test with the Mini-Mental State Examination as a cognitive screening tool for dlderly patients..
- Author:
Sang Hyun LEE
1
;
Moon Jong KIM
Author Information
1. Department of Family Medicine, College of Medicine, Inga University, Korea.
- Publication Type:Original Article
- Keywords:
clock drowning test;
dementia;
cognitive function;
MMSE
- MeSH:
Activities of Daily Living;
Aged;
Ambulatory Care Facilities;
Dementia;
Depression;
Humans;
Mass Screening*;
Memory;
Mild Cognitive Impairment;
Primary Health Care;
Sensitivity and Specificity
- From:Journal of the Korean Academy of Family Medicine
1999;20(3):269-278
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
BACKGROUND: Cognitive impairment often goes unrecognized by physicians because the many previous tools to evaluate cognitive function in the clinical setting are difficult and time-consuming. The purpose of this study was to compare the Clock Drawing Test(CDT) with the Mini-Mental State Examination (MMSE) as a cognitive screening tool for elderly patients. METHODS: In a haspital-based outpatient clinic, 99 patients aged 65 or older were administered with the MMSE and were asked to mark the digits in the pre-drawn clock. They are also evaluated with the Geriatric depression scak, the Activities of Daily Living, and the Instrumental Activities of Daily Living. RESULTS: Correlation between CDT and MMSE was high (r=-(~0.606; p<0.001). With respect to CDT, there were significant correlations with all subscales of MMSE except registration of memory(p<0.01). CDT with scores of 2 had a sensitivity of 68.2% and a specificity of 70.9% for mild cognitive impairment. CDT with scores of 4 had a sensitivity of 80.8% and a specificity of 84.8% for severe cognitive impairment. CONCLUSIONS: CDT can be an effective and simple cognitive screening tool for the elderly patients in the primary care outpatient clinic, if campensated for registration of memory among the cognitive function.
