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| The application of MoCA Changsha version for mild cognitive dysfunction screening in Xiangtan urban and rural communities |
| WANG Wei1, CHEN Ying1, CHEN Xuhong1, LI Rong1, ZHOU Limin1, YE Xiangli3, LEI Lifang2 |
1. The Second People's Hospital of Xiangtan City, Xiangtan 411100, China;
2. Xiangya 3rd Hospital, Central South University, Changsha 410013, China;
3. School of Medicine, Hunan Normal University, Changsha 410013, China |
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Abstract Objective To investigate the prevalence of mild cognitive impairment (MCI) in the elderly in the urban and rural communities of Xiangtan city, Hunan Province, and to explore the feasibility of Montreal cognitive assessment Changsha version (MoCA-CS) in the screening of mild cognitive impairment in the elderly in the communities of Xiangtan city. Method A multi-stage stratified cluster sampling method was used to conduct a questionnaire survey among the elderly over 65 years old in urban and rural communities of Xiangtan City, and the Changsha version of MoCA was adopted for cognitive function screening. Combined with clinical diagnosis and receiver operator characteristic curve (ROC) analysis, the ideal demarcation score of MCI screening was explored. Results Among 822 elderly people in the urban and rural communities of Xiangtan city, the positive rate of MCI screening was 28.22%. According to ROC curve analysis, the area under the curve of MoCA score for the differential diagnosis of MCI was 0.945, the critical value was 21.5, the sensitivity and specificity were 95.67% and 82.06%, respectively. There were significant differences in MoCA scores between people with different education levels; According to the ROC curve analysis, the area under the curve of MoCA score for the diagnosis of MCI in the illiterate group was 0.946, the cut-off value was 17.5, and the sensitivity and specificity were 85.71% and 90.91%, respectively. In primary school group, the area under the curve of MoCA score for the diagnosis of MCI was 0.898, the critical value was 20.5, and the sensitivity and specificity were 94.64% and 72.73%, respectively. The area under the curve of MoCA score for the diagnosis of MCI in the junior high school group was 0.983, the critical value was 21.5, the sensitivity and specificity were 96.72% and 91.47%, respectively. The area under the curve of MoCA score for the diagnosis of MCI in high school and above group was 0.984, the critical value was 22.5, and the sensitivity and specificity were 90.00% and 96.35%, respectively. Conclusions The prevalence of MCI is high in the residents of the urban and rural communities of Xiangtan city. The cut-off value of MoCA Changsha version should be adjusted according to the education level when used in the screening of the elderly in the urban and rural communities of Xiangtan City.
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Received: 05 May 2023
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2023, Vol. 20 
