Aguilar-Navarro SG, Mimenza-Alvarado AJ, Palacios-García AA, Samudio-Cruz A, Gutiérrez-Gutiérrez LA, Ávila-Funes JA. Validity and Reliability of the Spanish Version of the Montreal Cognitive Assessment (MoCA) for the Detection of Cognitive Impairment in Mexico.
ACTA ACUST UNITED AC 2017;
47:237-243. [PMID:
30286846 DOI:
10.1016/j.rcp.2017.05.003]
[Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 04/04/2017] [Accepted: 05/08/2017] [Indexed: 11/25/2022]
Abstract
OBJECTIVE
To establish the validity and reliability of the Montreal Cognitive Assessment in Spanish (MoCA-S) to identify mild cognitive impairment (MCI) and dementia in the Mexican elderly population.
MATERIAL AND METHODS
168 participants from a memory clinic in Mexico City were enrolled and divided into 3 groups: 59 cognitively healthy (CHG), 52 with mild cognitive impairment (MCI) (DSM-5 criteria) and 57 with dementia (NINCDS-ADRDA criteria). The MoCA-S and Mini-Mental State Evaluation (MMSE) were applied at baseline and during the last months to establish intra-observer reliability. ROC curves and a multinomial regression model were constructed to evaluate the effect of age and education on MoCA-S performance.
RESULTS
The mean age of the participants was 76±8.1 years and the education rate was 10.7±5.2. The MoCA-S scores by group were: CHG, 27.3±1.9; MCI, 22.9±2.9; and dementia, 13.7±4.9 (p<0.001). The reliability of the MoCA-S was 0.89 and the intraclass correlation coefficient was 0.955. Sensitivity was 80% and specificity was 75%, with a cut-off point of 26 points for MCI (area under the curve, 0.886; p<0.001). For the dementia group, the sensitivity was 98% and specificity was 93%, with a cut-off point of 24points (area under the curve, 0.998; p<0.001). The multinomial regression showed no association with education and age for both the MCI and dementia groups.
CONCLUSIONS
The MoCA-S is a valid and reliable instrument for MCI and dementia screening in the Mexican population, even after adjusting for age and education.
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