Epidemiology of Vascular Dementia and Stroke in Akita, Japan
Japanese studies have shown the rate of vascular dementia to be higher than that of Alzheimer-type dementia. In contrast, studies in Western countries have disclosed that the rate of Alzheimer-type dementia is higher than that of vascular dementia (Table 1). Furthermore, the prevalence rates of vascular dementia in Japan and Western countries are virtually the same, whereas the prevalence rate of Alzheimer-type dementia in Japan is much lower than in Western countries. Part of this difference may be attributed to methodology since in the Japanese studies dementia was established by Karasawa’s method.
KeywordsPrevalence Rate Cerebral Infarction Vascular Dementia Cerebrovascular Disorder Mild Dementia
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