为了解河南省居民死亡特点，提供制订防制措施的科学依据，我们分析了１９９７年疾病监测系统居民死亡情况。资料来源和方法１．资料来源：人口资料和死亡原始资料来自河南省１０个疾病监测点，凡发现个案资料有缺项或有疑问的，由点防疫站及时核查，填补遗漏，纠正错误；每３ In order to understand the characteristics of the deaths of residents in Henan Province and provide scientific basis for formulating preventive measures, we analyzed the deaths of residents of the disease surveillance system in 1997. Sources and Methods 1. Source: Demographic data and raw data from the deaths were collected from 10 disease surveillance sites in Henan Province. Where there are missing or in-doubt findings in the case data, the point epidemic prevention station shall promptly verify, fill in omissions and correct errors;