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长期以来,人们普遍把出生体重2,500克作为分界线来区分足月儿或早产儿,现在认识到这种标准己不完善。目前新生儿分类有两种方法:①按胎龄来区分早产儿(胎龄<37周);足月儿(胎龄37～42周);过期产儿(胎龄>42周)。②按出生体重标准区分目前国际上通用百分位法来判断体重标准,即将同一胎龄小儿按其出生体重值由小到大依次排列并等分为100份,由小到大编号,第十号即第10百分位,第九十号即第
It has long been widely recognized that 2,500 grams of birth weight is used as a dividing line to distinguish full-term children or premature babies, recognizing now that such standards are imperfect. Currently there are two methods of classification of newborns: ① gestational age to distinguish between premature children (gestational age <37 weeks); full-term children (gestational age 37 to 42 weeks); ② according to the standard birth weight to distinguish the current international percentile method to determine weight standards, the same gestational age children will be born according to their weight value from small to large order and is divided into 100 copies, from small to large number, the tenth The 10th percentile, the ninth is the tenth