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采用分层整群随机抽样原则，抽取安徽省２个城市和７个县的居民，调查１９９０～１９９２年３年全部死亡人口及其死因并分析城乡６５岁以上老年人口的主要死因，结果显示，安徽省６５岁以上老年人口占总人口５．５０％，与１９７５年相比增长了１．５６％。１９９０～１９９２年安徽省６５岁以上人口的死亡率为５０．９１‰；与农村相比，除８５岁以上组段外城市老年人口死亡率均低于农村。老年人口的主要死因依次为呼吸系疾病、脑血管病、恶性肿瘤和心脏病。该４种死因占总死亡的７６．６％。城市６５岁以上老年人口的首位死因为脑血管病，其次是恶性肿瘤；农村老年人口的第１位死因是呼吸系疾病。城市老年人口的精神病、糖尿病死亡率均高于农村并呈上升趋势。
Using the stratified cluster random sampling principle, residents from 2 cities and 7 counties in Anhui Province were selected to investigate the death rate and death rate of all 3 years from 1990 to 1992. The main causes of death were analyzed in urban and rural elderly over 65 years old. Anhui Province, the elderly over the age of 65 accounted for 5.50% of the total population, an increase of 1.56% compared with 1975. In 1990-1992, the mortality rate of the population aged over 65 in Anhui Province was 50.91 ‰. Compared with the rural areas, the mortality rate of urban elderly population was lower than that of the rural areas except for those over 85 years old. The main causes of death in the elderly were respiratory diseases, cerebrovascular diseases, malignancies and heart diseases. The four causes of death accounted for 76.6% of total deaths. The leading cause of death for the population over the age of 65 in urban areas is cerebrovascular disease, followed by malignant tumors; the leading cause of death in rural elderly population is respiratory disease. Urban elderly population mental illness, diabetes mortality were higher than in rural areas and is on the rise.