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Differential Relationships Between the Montreal Cognitive Assessment and Informant-Rated Cognitive Decline Among Mexican Americans and Non-Hispanic Whites.

Briceño EM, Mehdipanah R, Gonzales XF, Heeringa SG, Levine DA, Langa KM, Zahs D, Garcia N, Longoria R, Vargas A, Morgenstern LB. Differential Relationships Between the Montreal Cognitive Assessment and Informant-Rated Cognitive Decline Among Mexican Americans and Non-Hispanic Whites. Journal of geriatric psychiatry and neurology. 2022 Jul 1; 35(4):555-564.

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Abstract:

OBJECTIVES: We compared the concurrent validity of the Montreal Cognitive Assessment (MoCA) with other cognitive screening instruments among Mexican Americans (MA) and non-Hispanic whites (NHW). METHODS: In a community-based study in Nueces county, Texas (5/2/18-2/26/20), participants 65+ with MoCA = 25 completed the Harmonized Cognitive Assessment Protocol. Regressions examined associations between MoCA and: 1) Mini Mental State Examination (MMSE); 2) abbreviated Community Screening Interview for Dementia (CSI-D); 3) Informant Questionnaire on Cognitive Decline in the Elderly (IQCODE). RESULTS: MA (n = 229) and NHW (n = 81) differed by education but not age or sex. MoCA and cognitive performance associations (MMSE, CSI-D-Respondent) did not differ between MA and NHW (p's > .16). MoCA and informant rating associations (IQCODE, CSI-D-Informant) were stronger in NHW than MA (NHW R = 0.39 and 0.38, respectively; MA R = 0.30 and 0.28, respectively). DISCUSSION: Our findings suggest non-equivalence across cognitive screening instruments among MAs and NHWs.





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