Validation of the RUDAS in Patients With a Middle-Level Education in Lima, Peru

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Abstract

Objectives: To assess the psychometric properties of the Peruvian version of the Rowland Universal Dementia Assessment Scale (RUDAS-PE) to discriminate controls from patients with mild cognitive impairment (MCI) and early dementia (ED) in a population with a mid-level education. Methods: A total of 133 patients from a memory clinic were administered the RUDAS-PE, INECO Frontal Screening, Addenbrooke’s Cognitive Examination, and Mini-Mental State Examination. Results were compared against a neuropsychological evaluation (gold standard). Validity measures, internal consistency, and concurrent validity were calculated. Results: Cronbach’s α was 0.68; Pearson’s ratio was 0.79 (P <21), whereas between MCI and controls, it was 99.0% (optimal cutoff at <24). Conclusions: The RUDAS-PE has acceptable psychometric properties performing well in its ability to discriminate controls from patients with MCI and ED.

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Custodio, N., Montesinos, R., Lira, D., Herrera-Perez, E., Chavez, K., Hernandez-Córdova, G., … Metcalf, T. (2019). Validation of the RUDAS in Patients With a Middle-Level Education in Lima, Peru. American Journal of Alzheimer’s Disease and Other Dementias, 34(7–8), 513–522. https://doi.org/10.1177/1533317519869709

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