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近十几年来,国内外对小样儿的研究越来越多。小样儿不但围产期死亡率高,而且,存活者中还可能有体格和智能发育方面的问题。什么叫小样儿呢?小样儿即出生时足月儿体重小于2500克的婴儿;不足月儿小于该胎龄出生体重的婴儿,也叫小于胎龄儿。单胎,但不伴有先天畸形或严重感染者,包括早产儿和足月儿。为了了解小样儿的体格及智能发育状况,北京协和医院儿科从1986年1月至1989年12月,对4年中出生的小样儿207人进行了随诊调查。共随诊调查121人,
In the past ten years, more and more researches have been done on the sample children at home and abroad. Small samples not only have high rates of perinatal mortality, but also physical and intellectual development among survivors. What is a small sample? Sample that is born in full-term infants weighing less than 2500 grams of baby; less than the gestational age less than the birth weight of infants, also known as less than gestational age children. Singleton, but not accompanied by congenital malformations or severe infections, including preterm and term infants. In order to understand the physical and mental development of small sample children, Peking Union Medical College Hospital from January 1986 to December 1989, a small sample of 4 born in 207 were investigated. A total of 121 follow-up investigation,