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分析了１９９１～１９９６年大连市５岁以下儿童死亡率及前５位死因的变化情况，结果表明婴儿及５岁以下儿童死亡率分别由１９９１年的１８．８５‰、２５．０３‰降至１９９６年的１３．５２‰、１６．４５‰；婴儿前５位死因均主要是出生窒息、早产和低出生体重、先心病、新生儿肺炎和其他先天异常；５岁以下儿童前４位死因主要是出生窒息、肺炎、早产和低出生体重、先心病，６年来死因顺位无有意义的变化；１９９１～１９９６年间全市新生儿死亡占婴儿死亡的６９％～７９％，故减少新生儿的死亡是降低婴儿及５岁以下儿童死亡率的关键，应结合死因分析制定相应的措施
The changes of mortality rate and the top five causes of death among children under 5 years of age from 1991 to 1996 in Dalian were analyzed. The results showed that the infant and under-5 mortality rate dropped from 18.85 ‰ and 25.03 ‰ in 1991 to 1996 Year of 13.52 ‰, 16.45 ‰; The five leading causes of death in infants are mainly asphyxial birth, premature birth and low birth weight, congenital heart disease, neonatal pneumonia and other congenital anomalies; the top 4 causes of death among children under 5 years of age are mainly Birth asphyxia, pneumonia, premature birth and low birth weight, congenital heart disease, the cause of death for 6 years no significant change in the order; 1991-1996 the city’s neonatal deaths accounted for 69% to 79% of infant deaths, it is to reduce neonatal deaths The key to reducing the infant and under-5 mortality rate should be to incorporate measures of cause of death