Reliable change indices for the Italian version of the Montreal Cognitive Assessment (MoCA) in non-demented Parkinson’s disease patients

Reliable change indices for the Italian version of the Montreal Cognitive Assessment (MoCA) in non-demented Parkinson’s disease patients

Abstract Background . The present study aimed at deriving regression-based reliable change indices (RCIs) for the Montreal Cognitive Assessment (MoCA) in an Italian cohort of non-demented Parkinson’s disease (PD) patients. Methods N = 33 consecutive, non-demented PD patients were followed-up at a 5-...

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Main Authors: Edoardo Nicolò Aiello, Federica Solca, Silvia Torre, Beatrice Curti, Giulia De Luca, Ruggero Bonetti, Francesco Scheveger, Eleonora Colombo, Alessio Maranzano, Marco Olivero, Claudia Morelli, Alberto Doretti, Luca Maderna, Federico Verde, Roberta Ferrucci, Sergio Barbieri, Fabiana Ruggiero, Denise Mellace, Angelica Marfoli, Angelica De Sandi, Alberto Priori, Gabriella Pravettoni, Vincenzo Silani, Nicola Ticozzi, Andrea Ciammola, Barbara Poletti
Format: Article
Language:English
Published: BMC 2024-11-01
Series:BMC Neurology
Subjects:
Reliable change index
Cognitive screening
Parkinson’s disease
Montreal Cognitive Assessment
Psychometrics
Neuropsychology
Online Access:https://doi.org/10.1186/s12883-024-03920-9
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Summary:Abstract Background . The present study aimed at deriving regression-based reliable change indices (RCIs) for the Montreal Cognitive Assessment (MoCA) in an Italian cohort of non-demented Parkinson’s disease (PD) patients. Methods N = 33 consecutive, non-demented PD patients were followed-up at a 5-to-8-month interval (M = 6.6; SD = 0.6) with the MoCA. Practice effects and test-retest reliability were assessed via dependent-sample t-tests and intra-class correlation (ICC) coefficients, respectively. RCIs were derived separately for raw and demographically adjusted MoCA scores according to a standardized regression-based approach by accounting for both baseline confounders (i.e., demographics, disease duration and Unified Parkinson’s Disease Rating Scale scores) and retest interval. Results No practice effects were found (t(32) = 0.29; p = .778), with acceptable test-retest reliability being detected (ICC = 0.67). MoCA scores at T0 proved to be the only significant predictor of T1 MoCA performances within both the model addressing raw scores and that addressing adjusted scores (ps < 0.001). Conclusions The present study provides Italian practitioners and researchers with regression-based RCIs for the MoCA in non-demented PD patients, which can be reliably adopted for retest interval ≥ 5 and ≤ 8 months without encountering any practice effect.
ISSN:1471-2377

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