Invited Commentary: Algorithmic Dementia Classification—Promises and Challenges

Abstract Dementia is a complex, progressive syndrome characterized by cognitive decline and disability. Gold-standard dementia diagnosis requires several hours of cognitive and clinical assessment and review by a panel of clinicians and is infeasible in large population-based cohort studies. Alterna...

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Bibliographic Details
Published in:American journal of epidemiology 2023-04, Vol.192 (4), p.535-538
Main Authors: Mayeda, Elizabeth Rose, Shaw, Crystal
Format: Article
Language:English
Subjects:
Algorithms
Classification
Cognition
Cognition & reasoning
Cognitive ability
Cognitive Dysfunction
Dementia
Dementia - psychology
Dementia disorders
Epidemiology
Humans
Population studies
Quality assessment
Citations: Items that this one cites
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Summary:Abstract Dementia is a complex, progressive syndrome characterized by cognitive decline and disability. Gold-standard dementia diagnosis requires several hours of cognitive and clinical assessment and review by a panel of clinicians and is infeasible in large population-based cohort studies. Alternatively, algorithmic dementia classification methods, which use models that take into account measures of cognition and functional limitations or cognitive and functional-limitation score cutoffs, have been developed to predict dementia status for participants in large studies. Developing accurate dementia classification algorithms is crucial for high-quality studies of the distribution and determinants of dementia. The accompanying article by Nichols et al. (Am J Epidemiol. 2023;192(4):520–534) assesses differences in associations of measures of cognition and functional limitations with prevalent dementia versus incident dementia and discusses implications for algorithmic dementia classification in research studies. This work highlights important opportunities for tailoring measures of cognition and functional limitations to study goals by selecting optimal measures and developing and validating algorithms specific to study needs. Combining efficient, high-quality assessments of cognition and functional limitations with innovative study designs will facilitate collection of higher-quality measurements in larger samples and support future development of accurate dementia classifications, ultimately leading to more impactful epidemiologic studies.
ISSN:0002-9262
1476-6256
DOI:10.1093/aje/kwad003