老年痴呆是影响心身健康的重要疾病。随着我国人口迅速老龄化，老年痴呆的患病率有逐年增高的趋势[1]。为了解老年痴呆的患病情况，我们于1998年5～8月在阜阳市进行了调直。用病例筛查和病例确诊．痴呆患病率为5．27％，其中阿尔采水病（AD）和血管性痴呆（MID）患病率分别是3 Alzheimer’s disease is an important disease affecting mental and physical health. With the rapid population aging in our country, the prevalence of dementia tends to increase year by year [1]. To understand the prevalence of Alzheimer’s disease, we conducted straightening in Fuyang City from May to August 1998. Use case screening and case diagnosis. The prevalence of dementia was 5.27%, of which the prevalence of Alzheimers disease (AD) and vascular dementia (MID) was 3