Hassan Z, Karna P, Dolanski E A
Sparrow Hospital, Lansing, MI 48909.
Am J Perinatol. 1988 Jan;5(1):54-6. doi: 10.1055/s-2007-999654.
The internipple distance and its relationship to gestational age has not been studied in infants born in the United States. One hundred and thirty-three newborns between 25 and 40 weeks gestation showed progressive increase in the internipple distance with increasing gestational age. The internipple index stays constant during various gestational ages. The internipple index greater than 28% (greater than 2 SD) at any gestational age or during immediate postnatal age should be flagged to look into widely spaced nipples. Extrauterine growth of internipple distance is similar to that of intrauterine growth.
在美国出生的婴儿中，尚未对乳头间距及其与胎龄的关系进行研究。133例孕25至40周的新生儿显示，随着胎龄增加，乳头间距逐渐增大。乳头间距指数在不同胎龄时保持恒定。在任何胎龄或出生后即刻，乳头间距指数大于28%（大于2个标准差）时，应标记为乳头间距过宽并进行进一步检查。乳头间距的宫外生长与宫内生长相似。
