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- De Ronchi, D, et al.
(författare)
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The combined effect of age, education, and stroke on dementia and cognitive impairment no dementia in the elderly
- 2007
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Ingår i: Dementia and geriatric cognitive disorders. - : S. Karger AG. - 1420-8008 .- 1421-9824. ; 24:4, s. 266-273
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Tidskriftsartikel (refereegranskat)abstract
- <i>Background:</i> This study aims to detect the impact of stroke on the occurrence of dementia and cognitive impairment/no dementia (CIND) in different age, sex, and education groups. <i>Methods:</i> Persons with dementia (DSM-III-R) or CIND were identified by a two-phase study design among 7,930 persons from the population-based Faenza Community Aging Study. <i>Results:</i> Subjects with a history of stroke had increased risk of both dementia [risk ratio (RR) = 3.7; 95% confidence interval (CI) = 3.1–4.4] and CIND (RR = 1.7, 95% CI = 1.4–2.2). These associations were stronger in the younger-old (61–74 years) than in the older-old (75+ years), and among higher-educated (4+ years) than lower-educated (0–3 years of schooling) persons. Dementia and CIND prevalence among stroke subjects was similar to the prevalence detected among subjects 10 years older but without a history of stroke. In stroke subjects, dementia prevalence became higher than CIND prevalence 10 years earlier than in non-stroke subjects. A combined effect for dementia due to a history of stroke, increasing age, and decreasing years of schooling was detected. <i>Conclusions:</i> Stroke is a strong risk factor for dementia among younger-old and higher-educated subjects; in the presence of a stroke, dementia onset might occur about 10 years earlier, possibly by accelerating the progression from CIND to dementia.
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