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Determinants of functional abilities in dementia
R D Hill1, L Bäckman, L Fratiglioni
1Stockholm Gerontology Research Center, Karolinska Institute, Sweden.
Journal of the American Geriatrics Society
|October 1, 1995
Summary
Disease severity is the main predictor of daily functioning in dementia patients. However, visuoperception, education, and disease duration also play roles in predicting functional abilities.
Area of Science:
- Gerontology
- Neuroscience
- Psychology
Background:
- Dementia significantly impacts daily functioning.
- Predicting functional abilities in dementia is crucial for care planning.
Purpose of the Study:
- To identify demographic, psychometric, and memory variables that predict functional abilities in dementia.
- To assess the predictive power of these variables while controlling for disease severity.
Main Methods:
- Hierarchical regression analyses were used.
- Participants (N=81) with dementia (mean age 84.5) were assessed using neuropsychological tests and functional scales (ADL, IADL).
- Disease severity was controlled using the Mini-Mental State Exam (MMSE).
Main Results:
- Disease severity was the strongest predictor of both Activities of Daily Living (ADL) and Instrumental Activities of Daily Living (IADL).
- Visuoperception significantly predicted ADL and IADL performance after controlling for disease severity.
- Years of schooling and disease duration marginally predicted IADL performance.
Conclusions:
- Functional abilities in dementia can be predicted by individual difference variables.
- Visuoperception is a key predictor of ADL, while education and disease duration also influence IADL.
- Peripheral sensory processes are important for adaptive function in dementia.