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Neurological abnormalities in cognitively impaired but not demented elderly
T Kumamoto1, K Sannomiya, H Ueyama
1Third Department of Internal Medicine, Oita Medical University, Japan. kumagoro@oita-med.ac.jp
Acta Neurologica Scandinavica
|November 18, 2000
Summary
Cognitively Impaired but Not Demented (CIND) affects 10.8% of elderly in Japan, with prevalence increasing with age. CIND subjects show intermediate neurological signs and functional disability between no cognitive impairment and dementia.
Area of Science:
- Gerontology
- Neurology
- Public Health
Background:
- Cognitive impairment in the elderly is a growing concern.
- Understanding cognitively impaired but not demented (CIND) populations is crucial for targeted interventions.
Purpose of the Study:
- To determine the prevalence and clinical characteristics of CIND in a community-dwelling elderly population.
- To compare CIND subjects with those experiencing no cognitive impairment (NCI) and dementia.
Main Methods:
- A cross-sectional study involving 945 elderly residents (≥65 years) in Mifune, Japan.
- Standardized clinical examinations were administered in 27 randomly selected communities.
- Prevalence rates and clinical characteristics were assessed.
Main Results:
- The prevalence of CIND was 10.8%, and dementia was 4.8%, both increasing with age.
- CIND subjects exhibited more neurological signs and higher ADL disability scores than NCI individuals, but fewer than those with dementia.
- No significant lifestyle differences were observed between CIND and other cognitive groups.
Conclusions:
- A significant proportion of elderly individuals fall into the CIND category.
- Brain dysfunction, potentially from chronic neurological disorders or aging, likely underlies CIND.
- Further research into the causes and management of CIND is warranted.