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[Cognitive dysfunction among the elderly evaluated by the cognitive abilities screening instrument (CASI)].
1Third Department of Internal Medicine, Hiroshima University School of Medicine.
Nihon Ronen Igakkai Zasshi. Japanese Journal of Geriatrics
|March 29, 2000
Summary
The Cognitive Abilities Screening Instrument (CASI) effectively assesses cognitive function in older adults. Age and education significantly impact cognitive scores, with steeper declines observed in older individuals and women.
Area of Science:
- Neuroscience
- Gerontology
- Psychometrics
Context:
- The Cognitive Abilities Screening Instrument (CASI) was developed to evaluate cognitive functions in aging populations.
- Utilized the Adult Health Study (AHS) cohort in Hiroshima, comprising 2052 individuals aged 60+.
- Dementia diagnosis followed DSM-III-R criteria, incorporating neurological examination and caregiver-reported cognitive decline (IQCODE).
Purpose:
- To assess the efficacy of the CASI in evaluating cognitive abilities in an elderly population.
- To identify demographic factors (age, education) influencing cognitive performance as measured by CASI.
- To determine which CASI cognitive domains are most sensitive for dementia diagnosis.
Summary:
- Multivariate regression revealed higher CASI scores correlated with younger age and higher education.
- The rate of cognitive decline accelerated with age, particularly in women.
- CASI performance varied across cognitive domains, with temporal orientation, short-term memory, and list-generating fluency showing significant age-related effects.
Impact:
- CASI demonstrates utility in identifying cognitive decline and dementia in older adults.
- Findings highlight the differential impact of aging and education on specific cognitive domains.
- Temporal orientation, short-term memory, and list-generating fluency emerged as key indicators for dementia detection using CASI.