perinatal mortality rate 围产儿死亡率 ; 周产期死亡率 ; 儿死亡率 ; 围产期死亡率
observed perinatal mortality rate 实测围产期死亡率
expected perinatal mortality rate 预计围产期死亡率
But the perinatal mortality rate (the number of babies that die between the 22nd week of pregnancy and the first week after birth) was about the same.
然而，出生前后死亡率(怀孕22周和出生后第一周的婴儿死亡率)几乎相同。
The Dutch perinatal mortality rate is one of the highest in Europe, though the cause is contested.
尽管造成围产儿死亡的原因存在争议，但荷兰的围产儿死亡率是全欧洲最高的国家之一。
"Our results suggest that increased regionalization of perinatal care might reduce mortality among very-low-birth-rate infants," the investigators concluded.
“我们的结果表明，增加围产期护理的区域化可以减少极低出生体重婴儿的死亡率”，调查者总结。
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