The Prevalence of Dementia in Warsaw Centenarians: a Population – Based Study
Journal Title: Postępy Nauk Medycznych - Year 2012, Vol 25, Issue 1
Abstract
<b>Background. </b>Along with the centenarian population increases in recent years a number of centenarian studies have investigated the prevalence of dementia. These studies reported dementia prevalence rates to range from 30 to100%.<br><b>Aim.</b> To estimate the prevalence of dementia in individuals aged 100 years and older.<br><b>Material and methods. </b>Centenarians from Polish Centenarians Programme, who living in Warsaw and who did not refuse assessment of cognitive impairment were investigated from June 2002 to June 2004, 83 persons (71 women, 12 men; mean age 101. 11). Dementia was clinically diagnosed using DSM-IV criteria, Alzheimer’s disease using NINCS/ADRDA criteria and vascular dementia using ICD 10 criteria. The severity of dementia was classified using Global Deterioration Scale (GDS).<br><b>Results.</b> 65 (78.3%) participants lived with their families, 4 (4.8%) were institutionalized. 45 (54.2%) centenarians had primary education (38 women), 11 (13.3%) participants had higher education (10 women).<br>Among 28 (33.7%) non-demented centenarians 8 were classified as cognitively normal, 20 with cognitive impairment without dementia. Dementia was diagnosed in 55 (66.3%) participants (49 women). Among them 60% of the demented patients were affected by mild or moderate dementia (GDS 4 or 5). Clinically diagnosed AD accounted for 74.5% of all dementia cases.<br>Higher education was present significantly more frequent among women with dementia in comparison to women without dementia (31.8% vs. 6.1%, p < 0.05).<br><b>Conclusions.</b> In this study dementia is common but not universal finding. The high early education tended to be associated with a lower risk of developing dementia among women.
Authors and Affiliations
Anna Pfeffer, Małgorzata Chodakowska, Krzysztof Czyżewski, Tomasz Gabryelewicz, Elżbieta Łuczywek, Katarzyna Broczek, Maria Barcikowska
Keywords
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