Li S, Yan F, Li G, Chen C, Zhang W, Liu J, Jia X, Shen Y
Institute of Mental Health, Peking University, Beijing, China.
Acta Psychiatr Scand. 2007 Jan;115(1):73-9. doi: 10.1111/j.1600-0447.2006.00859.x.
To examine the time trend of dementia morbidity over the past decade in Beijing, China.
In 1997, 1593 community-dwelling elderly aged 60+ years were examined and followed-up over 2-years to identify incident dementia. A similar cohort study of dementia conducted in the same district 10 years prior was used as historical comparison to examine the time trend of dementia incidence.
Forty prevalent dementia cases were identified at the initial examination for a prevalence of 2.51% (95% CI: 1.74-3.28) and 25 incident cases were identified at the follow-up visit for an incidence of 0.90% (0.55-1.25) among residents aged 60+ years. Alzheimer's dementia (AD) was the most common type of dementia in both prevalent and incident cases.
The prevalence and incidence rates of dementia in Beijing were slightly higher than those 10 years ago, which was partly because of population aging. AD became the most common subtype of dementia.
研究过去十年间中国北京痴呆症发病率的时间趋势。
1997年，对1593名60岁及以上的社区老年人进行检查，并随访2年以确定新发痴呆症病例。将10年前在同一地区进行的一项类似的痴呆症队列研究作为历史对照，以研究痴呆症发病率的时间趋势。
在初次检查时发现40例痴呆症现患病例，患病率为2.51%（95%可信区间：1.74 - 3.28），在随访时发现25例新发病例，60岁及以上居民的发病率为0.90%（0.55 - 1.25）。阿尔茨海默病（AD）在现患病例和新发病例中都是最常见的痴呆类型。
北京痴呆症的患病率和发病率略高于10年前，部分原因是人口老龄化。AD成为痴呆症最常见的亚型。
