The project Epidemiology Research on Dementia in Antwerp (ERDA) estimated the prevalence of dementia in a random, population-based sample, stratified for age and sex. The sample of 1,736 elderly was screened at home with the Mini-Mental State Examination. All elderly under the cutoff of 23–24/30 got a diagnostic examination with the Cambridge Mental Disorders of the Elderly Examination and the DSM-IIIR criteria. The prevalence of dementia in the population above 65 years was estimated at 9. The following age-specific prevalences of dementia (included mild dementia) were found in the age-groups 65–69, 70–74, 75–79, 80–84, 85+: 0.6, 5.1, 7.6, 16.2 and 33.6. The prevalence of at least moderate dementia was 0.3, 3.9, 4.0, 11.2 and 25.0, respectively. The prevalence of dementia, vascular dementia and dementia of the Alzheimer type was markedly higher in women th
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