Validation of the Chinese Version of Montreal Cognitive Assessment Basic for Screening Mild Cognitive Impairment.

Abstract

To evaluate the effectiveness of the Chinese version of the Montreal Cognitive Assessment Basic (MoCA-BC) as a screening tool for detecting mild cognitive impairment (MCI) in Chinese elderly adults. Cross-sectional. Huashan Hospital, Shanghai, China. Individuals with MCI (n = 264) and mild Alzheimer's disease (AD) (n = 160) were recruited from the Memory Clinic, Huashan Hospital; cognitively normal controls were recruited from Jinshan Community, Shanghai, China (n = 280). MoCA-BC scores. The MoCA-BC had good criterion-related validity (Pearson correlation coefficient MoCA-BC vs MMSE = 0.787) and reliable internal consistency (Cronbach alpha = 0.807). The optimal cutoff scores for MCI screening were 19 for individuals with no more than 6 years of education, 22 for individuals with 7 to 12 years of education, and 24 for individuals with more than 12 years of education. The MoCA-BC was superior to the MMSE for detecting MCI, with optimal sensitivity and specificity across all education groups using the above cutoff scores. The MoCA-BC is a reliable cognitive screening test across all education levels in Chinese elderly adults, with high acceptance and good reliability.