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Dementia-free survival among centenarians
 — an evidence-based review
Author(s)James F Calvert Jr, Joyce Hollander-Rodriguez, Jeffrey Kaye
Journal titleJournals of Gerontology: Series A, Biological Sciences and Medical Sciences, vol 61A, no 9, September 2006
Pagespp 951-956
Sourcehttp://www.geron.org
KeywordsDementia ; Mental ageing ; Centenarians ; Life span ; Literature reviews.
AnnotationThe 2000 US Census identified 50154 Americans aged 100+ (18 per 100000). Increased longevity is not only of benefit if accompanied by the maintenance of physical, social and cognitive functions into advanced age. This review identifies research describing prevalence of dementia free-survival in centenarians. 650 publications were reviewed that described the prevalence of dementia in centenarians, were community-based, had data that were specific to people aged 100+, and were published in peer-reviewed journals. For each study, the authors identified the prevalence of dementia, the completeness of the sample, the number of study participants, the method used to diagnose dementia, and the duration of the study. 20 research groups from 14 countries were identified with publications meeting the search criteria. The studies showed substantial variation in methods of assessing cognitive status, assuring a complete cohort and sample size. Few studies reported longitudinal data or attempted diagnosis of the cause of dementia. Indicative of the variation found in the research reviewed is that prevalence of dementia-free survival at age 100 varied between 0% and 50%. (RH).
Accession NumberCPA-070504243 A
ClassmarkEA: D6: BBT: BG6: 64A

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