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Updated: Jun 1, 2025

A Machine Learning Approach to Design an Efficient Selective Screening of Mild Cognitive Impairment
Published on: January 11, 2020
Effectiveness and utilization of a cognitive screening program for primary geriatric care.
David P Salmon1,2, Anna Malkina3, Melanie L Johnson4
1Department of Neurosciences, University of California, San Diego, La Jolla, CA, 92093-0948, USA. dsalmon@ucsd.edu.
This study developed a cognitive screening program for primary care, effectively identifying cognitive impairment in older adults. The program demonstrated good accuracy and was well-received by physicians.
Area of Science:
- Geriatric Medicine
- Neuropsychology
- Primary Care Practice
Background:
- Primary care settings face challenges in detecting cognitive impairment due to time constraints and lack of specialized expertise.
- Existing cognitive screening tools are often not brief or validated for unsupervised use.
- A model program was developed for objective assessment of memory and cognitive abilities in geriatric patients.
Purpose of the Study:
- To develop and evaluate a model cognitive screening program for primary care physicians.
- To provide brief, objective cognitive assessments for geriatric patients with suspected deficits.
- To improve the detection and management of cognitive impairment in older adults.
Main Methods:
- A 40-minute session involving a battery of neuropsychological tests and questionnaires administered by trained staff.
- Results were reviewed by a dementia specialist who provided feedback to the primary care provider.
- Retrospective medical record review and a two-year follow-up in a subset of patients.
Main Results:
- Screening classified 638 patients into normal cognition, depression, mild cognitive impairment (MCI), or dementia.
- The program showed high agreement with eventual clinical diagnoses (69-77% accuracy).
- Screening results influenced specialist referrals, brain imaging, and medication changes when cognitive impairment was indicated.
Conclusions:
- The cognitive screening program is an efficient and effective tool for evaluating cognitive decline concerns in older adults.
- Primary care providers found the program acceptable and valuable for patient care.
- The program facilitates timely diagnosis and management of cognitive impairment in primary care settings.
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