Comparative Characteristic of Screening Scales for Cognitive Impairment Assessment

L.S. Milevska-Vovchuk


The paper describes the results of the comparative analysis of three cognitive screening scales: Mini-Mental state examination (MMSE), Mini-Cog test, Montreal Cognitive Assessment (MoCA). Neuropsychological examination was conducted in 25 patients with cerebrovascular diseases. It was found out that the performance of Mini-Cog test took 3 minutes approximately, while MMSE — 10 minutes, and MoCA — 13–15 min. The duration of the test impact the level of fatigue and exhaustion of patients. The results of Mini-Cog test do not depend on the initial level of education, culture and language. However, this test was the least sensitive and could only diagnose severe and moderate cognitive impairment. Among the advantages of MMSE were the possibility to determine the level of cognitive impairment according to the number of points and its higher sensitivity compared to Mini-Cog test. The most sensitive screening test was MoCA, but up to now formalized system of this test evaluation does not give possibility to rank the severity of cognitive impairments, according to the number of points.
Thus, the results of the research show that the neuropsychological methods should be selected taking into account the clinical situation and the conditions in which it is conducted. This comparative analysis of cognitive screening scales can be used in the preparation of diagnostic search for effective verification of the early changes in the intellectual and mental functions.


cognitive impairment; Mini-Mental state examination; Mini-Cog test; Montreal Cognitive Assessment


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