Prevalence of moderate and severe Alzheimer dementia and multi-infarct dementia in the population of southeastern Sicily

We have calculate the prevalence rates of moderate and severe dementia of the Alzheimer type (DAT) and of multi-infarct dementia (MID) in a Sicilian population sample aged 40 and over. For DAT the prevalence rate is 0.80% among the over 40s and 2.42% among the over 65s. The prevalence rates for both types, but especially for DAT, increase higher prevalence of primary degenerative dementia among females.