广东省沿海地区农村老年期痴呆的患病率调查

A survey of prevalence of dementia among the eldlery in a coastal rural area of Guangdong province.

目的了解广东省沿海地区农村老年期痴呆的患病率及其与年龄、性别和教育的关系。方法在恩平县、阳东县和阳西县随机抽取１０３１例６５岁以上老年人，用病例筛查和病例确诊二阶段法进行调查。结果痴呆的患病率为５９９％，其中阿尔采木病（ＡＤ）和血管性痴呆的患病率分别为４７２％和０８８％；文盲组的痴呆患病率较高，痴呆和ＡＤ的患病率均随年龄增大则增高女性高于男性。结论广东省沿海农村老年期痴呆患病率较我国以往报道的患病率高，ＡＤ为主要类别，女性。

Objective To examine the prevalence of dementia among the elderly in a coastal rural area of Guangdong province, and its relation to age, sex, and education. Methods 1031 residents aged 65 and over were randomly selected from Enning county, Yangdong county and Yangxi county. A two-stage approach including screening and clinical diagnosis was employed. Results The prevalence of dementia was estimated to be 5.99%. Alzheimer's disease (AD) was found in 4.72%, vascular dementia in 0.88%. Illiterate group had a higer prevalence of dementia. The prevalence of dementia and AD was significantly higher in woman and increased with age. Conclusions The prevalence of dementia in the coastal rural area of Guangdong province is higher than those previously reported in China. AD is the main type of dementia. Advanced age, female and less education may be risk factors for dementia.