上海市出生婴儿死亡风险分析

Infant mortality risk of births from 2004 to 2007,Shanghai:results from a record linkage study

：【目的】建立婴儿出生、死亡联合档案，分析导致婴儿死亡的危险因素，为制订相应的预防控制措施提供依据。【方法】应用婴儿出生、死亡记录共同建立婴儿出生死亡联合档案的方法，对2004--2007年出生的婴儿1年内的死亡情况进行了分析。【结果】2004--2007年上海市的婴儿死亡风险在3．14‰～4．09%之间，新生儿死亡风险高于后期婴儿死亡风险。出生体重越低，婴儿死亡风险越高，但当婴儿出生体重达到或超过4500g时，婴儿死亡风险不降反有所上升。同时，婴儿出生体重越低，在新生儿期死亡的比例越高。【结论】匹配婴儿出生、死亡档案的方法可以帮助发现婴儿死亡的危险因素。婴儿的出生体重是影响婴儿生存状况的重要因素。

[Objective] The record linkage study of infant mortality data provides an opportunity for developing preventive strategies to improve infant health. [Methods] A population based record linkage of infant births and deaths was conducted for infants from 2004 to 2007 in Shanghai. Birth weight specific infant mortality risks were calculated. [Results] The infant mortality risks was 3.14%-4.09% in 2004--2007. The neonatal mortality risk was higher than post- neonatal. The infant mortality risk became higher when the birth weight decreased. When the birth weight was less than 1 000 g, the infant mortality risk arrived 581.63~0; when the birth weight was more than 4 500 g, the infant mortality risk did not keep down but increased a little. Meanwhile, with the birth weight going down, the proportion that death in neonatal accounted for increased. Perinatal diseases and congenital malformations were main causes of infant death, but the levels were different for different birth weight. [Conclusions] Record linkage is a powerful tool in exploring risk factors of infant mortality. Birth weight is an important factor of infants＇ survival.