Cut-off points of the Portuguese version of the Montreal Cognitive Assessment for cognitive evaluation in Parkinson’s disease

• Autor(a) principal: Almeida,Kelson James
• Data de Publicação: 2019
• Outros Autores: Carvalho,Larissa Clementino Leite de Sá, Monteiro,Tomásia Henrique Oliveira de Holanda, Gonçalves Júnior,Paulo Cesar de Jesus, Campos-Sousa,Raimundo Nonato
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Dementia & Neuropsychologia
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-57642019000200210
• topic: Parkinson’s disease; MOCA-BR; dementia in Parkinson’s disease (PD-D); mild cognitive impairment (PD-MCI); cognitive assessment

ABSTRACT. The Movement Disorder Society has published some recommendations for dementia diagnosis in Parkinson disease (PD), proposing the Montreal Cognitive Assessment (MOCA) as a cognitive screening tool in these patients. However, few studies have been conducted assessing the Portuguese version of this test in Brazil (MOCA-BR). Objective: the aim of the present study was to define the cut-off points of the MOCA-BR scale for diagnosing Mild Cognitive Impairment (PD-MCI) and Dementia (PD-D) in patients with PD. Methods: this was a cross-sectional, analytic field study based on a quantitative approach. Patients were selected after a consecutive assessment by a neurologist, after an extensive cognitive evaluation, and were classified as having normal cognition (PD-N), PD-MCI or PD-D. The MOCA-BR was then applied and 89 patients selected. Results: on the cognitive assessment, 30.3% were PD-N, 41.6% PD-MCI and 28.1% PD-D. The cut-off score on the MOCA-Br to distinguish PD-N from PD-D was 22.50 (95% CI 0.748-0.943) for sensitivity of 85.5% and specificity of 71.1%. The cut-off for distinguishing PD-D from MCI was 17.50 (95% CI 0.758-0.951) for sensitivity of 81.6% and specificity of 76%.