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据统计,全球每年有1 290万早产儿出生,占活产婴的9.6%;并且极低出生体重(very low birth weight,VLBW)和超低出生体重(extremely low birth weight,ELBW)儿明显增加。目前我国统计的早产儿发生率为7.8%,其中VLBW儿占9.1%。然而全球每年310万死亡人数中,早产及其并发症死亡人数占其中的35%;占新生儿总死亡数的50%
It is estimated that a total of 12.9 million premature babies are born each year in the world, accounting for 9.6% of live births; and children with very low birth weight (VLBW) and extremely low birth weight (ELBW) are significantly increased . At present, the incidence of preterm children in our country is 7.8%, of which VLBW accounted for 9.1%. However, among the 3.1 million deaths worldwide each year, 35% of them die of preterm birth and its complications, and 50% of the total newborns’ deaths.