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Dementia Prevalence in Greece

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Introduction:

Study of the epidemiology of dementia to gain insight into putative predisposing and prophylactic factors is the first step toward establishing effective preventive and therapeutic strategies for this ever-growing public health problem. Relevant data in Greece are scattered and outdated.

Methods:

We investigated dementia prevalence as part of a population-representative epidemiological study [Hellenic Longitudinal Investigation of Aging and Diet (HELIAD)] in 2 Greek regions.

Results:

Our sample comprised 1792 adults 65 years of age or older, who received a full neurological and neuropsychological evaluation that led to a consensus diagnosis. The overall prevalence of dementia was 5.0%, with 75.3% of the cases attributed to Alzheimer disease. Dementia odds were 15.8% higher for every year of advancing age and 9.4% lower for every additional year of education. Carrying at least 1 APOE-ε4 allele doubled the risk of dementia, whereas sex did not exert a statistically significant effect.

Conclusions:

Our results are consistent with previous research in Southern European countries; dementia prevalence in Greece is in the lower range of what has been reported globally.
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Keywords: Alzheimer disease; Greece; Southern Europe; dementia; prevalence; subtypes

Document Type: Research Article

Affiliations: 1: Laboratory of Cognitive Neuroscience, School of Psychology, Aristotle University of Thessaloniki, Thessaloniki 2: Department of Social Medicine, Psychiatry and Neurology, 1st Department of Neurology, Aeginition University Hospital, National and Kapodistrian University of Athens 3: Department of Nutrition and Dietetics, Harokopio University, Athens 4: School of Medicine, University of Thessaly, Larissa 5: Athens Association of Alzheimer’s Disease and Related Disorders, Marousi, Greece 6: Department of Social Medicine, Psychiatry and Neurology, 1st Department of Neurology, Aeginition University Hospital, National and Kapodistrian University of Athens, Athens Association of Alzheimer’s Disease and Related Disorders, Marousi, Greece 7: Department of Social Medicine, Psychiatry and Neurology, 1st Department of Neurology, Aeginition University Hospital, National and Kapodistrian University of Athens, Department of Neurology, the Gertrude H. Sergievsky Center, Taub Institute for Research in Alzheimer’s Disease and the Aging Brain, Columbia University, New York, NY

Publication date: July 1, 2018

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