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Prevalence of dementia and cognitive impairment in Southeastern Spain: the Ariadna study
Author(s) -
Gavrila D.,
Antúnez C.,
Tormo M. J.,
Carles R.,
García Santos J. M.,
Parrilla G.,
Fortuna L.,
Jiménez J.,
Salmerón D.,
Navarro C.
Publication year - 2009
Publication title -
acta neurologica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.967
H-Index - 95
eISSN - 1600-0404
pISSN - 0001-6314
DOI - 10.1111/j.1600-0404.2009.01283.x
Subject(s) - dementia , medicine , odds ratio , functional illiteracy , confidence interval , population , cross sectional study , demography , cognitive impairment , gerontology , cognition , psychiatry , disease , environmental health , pathology , sociology , political science , law
Objectives – To estimate the prevalence of amnestic mild cognitive impairment (aMCI), cognitive impairment, no dementia (CIND) and dementia in a general elderly population and to examine the associated socio‐demographic factors. Methods – The Ariadna study is a population‐based cross‐sectional study of cognitive function involving 1074 individuals aged 65–96 years from the Murcia Region of southeastern Spain. Prevalence, adjusted odds ratio (OR) and 95% confidence intervals (CI) were calculated. Results – The overall prevalence was 8.7% (95% CI 7.1–10.5) for aMCI, 14.5% (95% CI 12.4–16.8) for CIND and 5.5% (95% CI 4.3–7.1) for dementia. Dementia was associated with age (OR 1.13 95% CI 1.09–1.18 for a 1‐year increase in age). Illiterate subjects were more likely to present aMCI (OR 2.59; 95% CI 1.09–6.14) and dementia (OR 4.09; 95% CI 1.28–13.08) than subjects with secondary or higher education. Rural area residents (OR 2.13, 95% CI 1.07–4.24) and women (OR 1.53, 95% CI 1.06–2.22) were more likely to have CIND. Conclusion – The prevalence of dementia was low, despite a high prevalence of aMCI and CIND. Dementia was strongly associated with age and education. CIND was associated with living in a rural area and with female sex, while aMCI was associated with illiteracy.