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Updated: May 21, 2026
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Evaluation of the Cognitive Performance of Hypertensive Patients with Silent Cerebrovascular Lesions
Published on: April 23, 2021
Montreal Cognitive Assessment (MoCA): validation study for vascular dementia
Sandra Freitas1, Mário R Simões, Lara Alves
1Faculty of Psychology and Educational Sciences, University of Coimbra, Coimbra, Portugal. sandrafreitas0209@gmail.com
Summary
The Montreal Cognitive Assessment (MoCA) effectively screens for cognitive impairment in Vascular Dementia (VaD) patients. Both full and short MoCA versions demonstrate superior accuracy and reliability compared to the MMSE for VaD diagnosis.
Area of Science:
- Neurology
- Psychometrics
- Geriatrics
Background:
- The Montreal Cognitive Assessment (MoCA) is a screening tool for mild cognitive impairment.
- Existing tools like the Mini-Mental State Examination (MMSE) have limitations.
- Vascular Dementia (VaD) requires sensitive screening instruments.
Purpose of the Study:
- To validate the Montreal Cognitive Assessment (MoCA) and its short version for screening Vascular Dementia (VaD) patients.
- To compare the diagnostic accuracy of MoCA versions against the MMSE in VaD.
Main Methods:
- A study involving a homogeneous sample of 34 VaD patients.
- Validation of both the full and short versions of the MoCA.
- Comparison of diagnostic accuracy using Area Under the Curve (AUC), sensitivity, specificity, and predictive values against the MMSE.
Main Results:
- The MoCA demonstrated excellent psychometric validity and reliability for cognitive screening in VaD.
- Both MoCA versions showed superior diagnostic accuracy (AUC > 0.93) compared to MMSE (AUC = 0.86).
- Optimal cutoffs identified for MoCA full (≤17) and short (≤8) versions yielded better performance metrics than MMSE.
Conclusions:
- The Montreal Cognitive Assessment (MoCA) is a valid, reliable, sensitive, and accurate screening instrument for VaD.
- Both full and short MoCA versions are recommended for clinical use in screening VaD patients.
- MoCA surpasses MMSE in diagnostic accuracy for detecting cognitive impairment in VaD.
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