ABSTRACT
Objective:To explore the diagnostic value of the Montreal cognitive assessment combined with delayed recall in time-limited screening for screening the elderly mild cognitive impairment (MCI) population.Method:A total of 178 elderly patients were enrolled in this study,and EADC was used to diagnose MCI.The patients were divided into normal group (n=92) and case group (n=86).178 cases were accepted by the conventional method of Montreal cognitive assessment and the Montreal cognitive assessment combined with delayed recall part of the time limit application,with the application of the receiver operating characteristic curve (ROC) for analysis,and getting the best cut-off point.Result:①The area under the ROC curve of the Montreal cognitive assessment was 0.851,the area of the Montreal cognitive assessment combined with the delayed recall in time-limited Screening was 0.917.The area under the ROC curve of the Montreal cognitive assessment combined with the delayed recall in time-limited screening was higher than that of the conventional method.The area under the ROC curve between the two ways was statistically significant,and the difference was statistically significant.②The best cut-off value of the Montreal cognitive assessment was 25,the sensitivity was 88.37％ and the specificity was 85.37％.The best cut-off value of the Montreal cognitive assessment combined with the delayed recall in time-limited screening was 25,the sensitivity was 95.35％ and the specificity was 78.26％.Conclusion:①The Montreal cognitive assessment Combined with delayed recall in time-limited screening can be applied to the diagnosis of mild cognitive impairment in the elderly.The diagnostic value of the Montreal cognitive assessment combined with the d elayed recall in time-limited screening was higher than that of the conventional method.②The cut-off point established by the ROC curve can be used as a diagnostic reference for the evaluation of mild cognitive impairment in the elderly as a part of the Montreal cognitive assessment combined with delayed recall in time-limited screening.