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本文以随机整群抽样的方法,从5个城区中抽取江岸区1980～1989年各医院、街道派出所等登记在册的死亡婴儿1046例为分析对象,结合家访资料,按国际疾病分类法(ICD-9)对死因进行推断和分类。同时求出各年的婴儿
In this paper, randomized cluster sampling method is used to collect 1046 death infants from various hospitals and street police stations from 1980 to 1989 in the river bank districts from 5 urban districts as the analysis objects, combining home visit data and according to the International Classification of Diseases (ICD- 9) Infer and classify the cause of death. Simultaneously find babies in each year