蒙城县地处安徽北部 ,黄淮平原。 80年代开始 ,被定为全国疾病监测点 ,监测人口近 2 0万。现将监测点 1999年居民病伤死亡原因浅析如下 :1　材料与方法1.1　材料来源　每个死亡病例按全国疾病监测点统一规定填写死亡登记卡。1.2　方法　采用ＷＨＯ推荐的ＩＣＤ - 9分类法分类。 Mengcheng County is located in the north of Anhui Province and Huanghuai Plain. Since the beginning of the 1980s, it has been designated as a national disease surveillance site and has a monitoring population of nearly 200,000. The analysis of the causes of the deaths of the residents in the monitoring point in 1999 is as follows: 1 Materials and methods 1.1 Sources of materials Each death case shall be filled out with a death registration card in accordance with the national disease surveillance site. 1.2 Methods The WHO-recommended ICD-9 classification was used.