Scholl T O, Hediger M L, Ances I G
Department of Obstetrics and Gynecology, University of Medicine and Dentistry of New Jersey, SOM & Cooper Hospital/University Medical Center, Camden 08103.
Am J Clin Nutr. 1990 May;51(5):790-3. doi: 10.1093/ajcn/51.5.790.
We used stature and measurement of knee height to measure continued maternal growth during adolescent pregnancy in a sample of young gravidas (primigravidas and multiparas) and mature pregnant control subjects. Growth during pregnancy has been masked by a tendency of all gravidas to shrink while pregnant (approximately 0.5 cm over 6 mo of observation). Consequently, growth of many adolescent gravidas has not been clinically apparent. There was no effect on maternal growth during a first pregnancy in adolescence but this may be a result of the relatively good prepregnant nutrition status of the young gravidas in developed countries. Maternal growth during pregnancy, however, is associated with significantly decreased (-282 g, p less than 0.05) birth weight for infants when maternal growth continues during a subsequent adolescent pregnancy. This observation is consistent with the hypothesized competition between the metabolic demands of the growing adolescent mother and the nutrient needs of her developing fetus.
我们通过身高和膝高测量，对年轻孕妇（初产妇和经产妇）及成熟怀孕对照对象样本在青春期怀孕期间的母体持续生长情况进行了测量。孕期生长一直被所有孕妇在孕期出现的身高缩减趋势（在6个月的观察期内约缩减0.5厘米）所掩盖。因此，许多青春期孕妇的生长在临床上并不明显。青春期首次怀孕对母体生长没有影响，但这可能是发达国家年轻孕妇孕前营养状况相对良好的结果。然而，当青春期孕妇在随后的孕期继续生长时，孕期母体生长与婴儿出生体重显著降低（-282克，p<0.05）有关。这一观察结果与青春期母亲生长的代谢需求和发育中胎儿的营养需求之间存在竞争的假设一致。
