AUTHOR=Tan Ji-ping , Wang Xiaoxiao , Zhang Shimin , Zhao Yiming , Lan Xiaoyang , Li Nan , Wang Lu-ning , Gao Jing 

TITLE=Accuracy of the Short-Form Montreal Cognitive Assessment Chinese Versions

JOURNAL=Frontiers in Aging Neuroscience

VOLUME=Volume 13 - 2021

YEAR=2021

URL=https://www.frontiersin.org/journals/aging-neuroscience/articles/10.3389/fnagi.2021.687824

DOI=10.3389/fnagi.2021.687824

ISSN=1663-4365

ABSTRACT=Background
There is a strong need for short and effective methods to screen for cognitive impairment. Recent work has created short forms of the Montreal Cognitive Assessment (s-MoCA) in English speaking populations. It is also important to develop a validated Chinese short version to detect cognitive impairment.
Methods
Item response theory and computerized adaptive testing analytics were used to construct abbreviated MoCAs across a large neurological sample comprising 6,981 community-dwelling Chinese veterans.
Results
Six MoCA items with high discrimination and appropriate difficulty were included in the s-MoCA. The Chinese short versions (sensitivity 0.89/0.90, specificity 0.72/0.77) are similar in performance to the full MoCA in identifying cognitive impairment (sensitivity 0.91, specificity 0.82).
Conclusions
These short variants of the MoCA may serve as quick and effective instruments when the original MoCA cannot be feasibly administered in clinical services with high patient burden and limited cognitive testing resources.