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Beyond Screening: Can the Mini-Mental State Examination be Used as an Exclusion Tool in a Memory Clinic?
Xin Xu1, Eddie Chong2, Saima Hilal3
1Memory, Aging and Cognition Center, Department of Pharmacology, National University Health System, Singapore 117600, Singapore. phcxx@nus.edu.sg.
Abstract:
This study explores whether the Mini-Mental State Examination (MMSE) could reliably exclude definite dementia and dementia-free cases from requiring more extensive neuropsychological investigations in memory clinic settings in Singapore. Patients with memory complaints referred for possible dementia underwent the MMSE, followed by standardized neuropsychological and clinical assessments which led to a consensus diagnosis. MMSE cut-off points were derived stratified for education (less and equal/above primary level). Results show that after education stratification, using an optimal Positive Likelihood Ratio (PLR) and optimal Negative Likelihood Ratio (NLR), a higher percentage of patients were correctly identified as having dementia or dementia-free, with minimal misclassification rate. The finding suggests the MMSE can be used to exclude patients not requiring full neuropsychological assessments in a memory clinic.
Insights
The Mini-Mental State Examination (MMSE) effectively identifies dementia-free patients, reducing the need for extensive neuropsychological testing in Singapore memory clinics. This tool aids in efficient patient management for dementia screening.
Area of Science:
- Neurology
- Geriatrics
- Cognitive Assessment
Background:
- Memory clinics manage patients with cognitive decline.
- Accurate initial screening is crucial for efficient patient pathways.
- The Mini-Mental State Examination (MMSE) is a common cognitive screening tool.
Purpose of the Study:
- To evaluate the Mini-Mental State Examination's (MMSE) utility in excluding dementia and dementia-free cases.
- To determine if MMSE can reduce the need for comprehensive neuropsychological assessments in Singapore memory clinics.
Main Methods:
- Patients with memory complaints underwent MMSE and full neuropsychological/clinical assessments.
- Consensus diagnosis was established post-assessment.
- MMSE cut-off points were determined, stratified by education level.
Main Results:
- Education-stratified MMSE demonstrated improved accuracy in identifying dementia and dementia-free individuals.
- Optimal Positive Likelihood Ratio (PLR) and Negative Likelihood Ratio (NLR) were utilized.
- Minimal misclassification rates were observed.
Conclusions:
- The MMSE, when stratified by education, can reliably exclude patients not requiring full neuropsychological evaluation.
- This enhances efficiency in memory clinic settings.
- MMSE serves as a valuable tool for initial dementia screening and triage.
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