Equivalencia de las formas alternativas del ‘Montreal Cognitive Assessment’ (MoCA) en el cribado del deterioro cognitivo en adultos mayores

Una revisión sistemática

Abstract

Background:  Brief cognitive tests are routinely used to detect objective cognitive impairment. The Montreal Cognitive Assessment (MoCA), developed specifically for the identification of MCI in older adults, is among the most used instruments. MoCA has three versions, which allows to reduce the chances of contaminating repeated assessments with the effect of practice. Our aim was to systematically review the psychometric properties of the alternative forms of the MoCA versions and to analyze their equivalence. Method: searching was carried out in the Web of Science, Medline and PsycINFO databases following the PRISMA guidelines guide for systematic reviews and meta-analyses. Subsequently, the quality of the selected articles was evaluated using a form adapted from the COSMIN guide. Results: Eight articles with psychometric information from at least two versions of the instrument were selected. Conclusions: Studies on the equivalence of the MoCA versions are scarce and diverse, which makes it difficult to draw valid conclusions. The available data suggests that the original version includes more difficult items and scores lower, especially when compared to version 7.3 of the instrument.