北京城、乡老年期痴呆患者205例三年随访分析

目的 观察老年期痴呆对老年人生存的影响。方法 1997年采用2阶段法对北京城乡60岁及以上老年人群进行痴呆患病率调查，2000年对该人群全面随访并进行3年的死亡追踪。结果 1997年基线调查共2788人，2000年访到2721人，其中存活2307人(82．7％)，死亡414人(14．9％)，另因搬迁等失访67人(2．4％)，以追踪到的2721例为纵向预后分析样本，年死亡率为3．79％(标化)。205例痴呆老年人3年中死亡101例，累计死亡率高达42．46％(标化)，约为非痴呆患者的5倍。在痴呆患者中性别间的死亡率差异无显著性，农村地区及75岁以上高龄痴呆老人死亡率增加。但75岁以下低龄痴呆患者及阿尔茨海默型痴呆对生存的影响更大，伴有躯体功能障碍的痴呆老人死亡率增加。结论 痴呆是影响老年人生存及生活质量的重要疾病，应加强防治。

Outcome of three-year follow-up for elderly people with dementia in urban and rural areas of in Beijing

Objective To analyze the influence of elderly dementia living in urban and rural areas of Beijing on their survival rate. Methods The elderly people with dementia aged 60 years and over lived in Beijing was investigated since 1997 by two step method and the mortality of the same population was followed up in 2000. Results A total of 2 788 patients were collected in 1997, and 2 721 of them were visited in 2000. Sixty seven(2 4%) of them were lost for follow up due to making a move and other reasons. Among the followed 2 721 cases , 2 307 were still alive (82 7%) and 414 died (14 9%), with the annual fatality rate being 3 79%(standardized). For all 205 cases diagnosed as dementia in 1997, the accumulated fatality rate was 42 46%(standardized), being 5 folds of the fatality for the non dementia. No significant difference was found in the fatality rate between male and female dementia. The fatality of dementia in rural area and over 75 years of age increased. Age and living conditions influenced significantly the fatality, and the fatality rate increased in patients with dementia and dysfunction of body moving. Conclusions Dementia is a disease impacting seriously the survival of elderly people.