A Preliminary Study Of The Reliability And Validity Of Montreal Cognitive Assessment Chinese Version

Objective To study the validity and reliability of the Montreal Cognitive Assessment (MoCA) Chinese version in china.Methods Using Chinese version of MoCA translated by Wang wei . We recruited two groups of volunteers to participate in the study. One group consisted of 20 patients with brain disorders and the scores of MMSE≦23 (patient group),The other group consisted of 30 subjects without neurological disorders(control group).All the subjects were assessed with MoCA and MMSE within one session,and respectively by two independent raters.Scores of MoCA and MMSE were analyzed with Spearman correlation coefficient to test the validity of MoCA.Intraclass correlation coefficient(ICC )were used to examine the inter-rater reliability of MoCA.And Mann-Whitney test was used to detect the sensitivity of MoCA.Results There was high correlation between the scores of MoCA and that of MMSE (r=0.902 P<0.001).There were high correlation in all items of MoCA between the two assessment tools(ICC:0.913～1.000) .The total scores of MoCA were 11.82±4.23 in the patient group and 26.2±2.64 in the control group with significant difference between the two groups(P<0.01).Conclusion The Chinese version of MoCA is valid,reliable and sensitive.It can be used clinically to evaluate the subjects with moderate or severe cognitive impairment or dementia.