蒙特利尔认知评估量表用于社区轻度认知障碍筛查的初步研究

目的探讨北京版蒙特利尔认知评估量表(MoCA-BJ)用于筛查社区轻度认知障碍(MCI)人群的适用性和最佳分界值。方法以西咸城区50岁以上社区居民为研究对象,采用随机整群抽样方法抽取西咸城区中1195名社区老年人。采用简易精神状态量表(MMSE)对受试者进行认知功能检测,参照MCI诊断标准分为正常组和MCI组,再次进行MoCA-BJ测试。按照受教育程度进行分组,分别绘制各组的受试者工作曲线(ROC),确定最大约登指数所对应的MoCA-BJ截断值。结果MMSE和MoCA-BJ评分显著相关,相关系数为0.791,P<0.001;各组MoCA-BJ最佳分界值分别为19(文盲)、21(小学)、25(初中及以上)。一致性检验Kappa值为0.686,P<0.001,一致性较好。结论MoCA-BJ能有效应用于本地区的MCI人群筛查。

A preliminary study of the montreal cognitive assessment scale for the screening of mild cognitive impairment in the community

Objective To explore the applicability and best cut-off value of the Montreal Cognitive Assessment Scale Beijing Version(MoCA-BJ)for mild cognitive impairment(MCI)screening in Xian City.Methods Community residents over 50 years old in Xiancheng District were enrolled as the research object,a random cluster sampling method was used to sample 1195 community elderly people in Xiancheng District.The subjects were tested for cognitive function with the Mini-mental State Examination(MMSE),and were divided into the normal group and the MCI group according to the diagnostic criteria,and the MoCA-BJ test was performed again.Groups were grouped according to education level,and the receiver operating curve(ROC)of each group was drawn to determine the MoCA-BJ cut-off value corresponding to the maximum Youden index.Results MMSE and MoCA-BJ scores were significantly correlated,the correlation coefficient was 0.791 P<0.001;the best cut-off values of MoCA-BJ in each group were 19(illiterate),21(elementary school),and 25(junior high school and above).The consistency test Kappa value is 0.686 P<0.001,and the consistency is good.Conclusion MoCA-BJ can be effectively used in the screening of MCI population in this area.