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本文报告福州地区１２４５９例不同胎龄单胎活产新生儿出生体重算术均值及百分１０、２５、５０、７５、９０位数值；男婴体重平均比女婴重９９ｇ；同胎龄经产儿出生体重高于初产儿；胎儿体重于孕３６～３７周时出现一个突出的高峰。本文结果可作为福州地区不同胎龄新生儿体格发育的参考标准，同时对新生儿按胎龄与出生体重进行分类，了解胎儿在子宫内的生长发育情况，诊断生长发育迟缓以及处理高危妊娠等也有重要意义。
This paper reports 12,959 birth weights and 10,25,50,75,90 figures of birth weight of 12 459 singleton live births in Fuzhou. The average weight of male baby is 99 g Weight was higher than that of primiparous children; fetus weight appeared a prominent peak at 36-37 weeks of pregnancy. The results of this paper can be used as a reference standard for the physical development of newborns of different gestational age in Fuzhou area. Meanwhile, the classification of newborns by gestational age and birth weight is carried out to understand the growth and development of the fetus in the uterus, diagnose the growth retardation and handle the high-risk pregnancy Significance.