Mechanisms for maternal age differences in birth weight.
Mechanisms for maternal age differences in birth weight.
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母亲出生体重年龄差异的机制。
DOI：
10.1093/oxfordjournals.aje.a117668
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发表时间：
1995
影响因子：
5
通讯作者：
Nanda,J
中科院分区：
文献类型：
--
作者：
Strobino,DM;Ensminger,ME;Kim,YJ;Nanda,J
作者研究了美国青春期母亲所生婴儿出生体重减少的三种假设解释——社会劣势、生理不成熟和怀孕期间的不健康行为。研究者利用国家青年纵向研究（National Longitudinal Study of Youth）对1979年至1983年间1754名14-25岁女性首次生育的数据进行了层次回归分析，以评估这些解释。14-17岁、18-19岁和20-23岁母亲所生婴儿的出生体重分别比23-25岁母亲所生婴儿的出生体重少133、54和88克。回归结果表明，年轻母亲，特别是14-17岁的女性所生婴儿的出生体重减少与她们所处的不利社会环境有关。当对贫困和少数民族身份进行调整时，没有母亲出生体重的年龄差异。出生体重的减少与年轻女性在怀孕期间的健康行为或她的生物学特征无关。种族、贫困状况、初潮年龄、母亲身高、母亲净体重增加和怀孕期间吸烟对年轻女性的出生体重有独立的影响。
The authors studied three hypothesized explanations for reduced birth weights of infants born to US adolescent mothers—social disadvantage, biologic immaturity, and unhealthy behaviors during pregnancy. A hierarchical regression analysis was pursued to evaluate these explanations using data from the National Longitudinal Study of Youth on 1,754 first births between 1979 and 1983 to women aged 14–25 years at the time of birth. The birth weights of infants of mothers aged 14–17, 18–19, and 20–23 years were 133, 54, and 88 g less than for infants of mothers aged 23–25. The regression results indicate that the reduced birth weights of infants born to young mothers, particularly women aged 14–17, were related to their disadvantaged social environment. When adjustment was made for poverty and minority status, there were no maternal age differences in birth weight. The reduced birth weights were not related to the young woman's health behaviors during pregnancy or her biologic characteristics. Ethnicity, poverty status, age at menarche, maternal height, net maternal weight gain, and smoking during pregnancy had an independent effect on birth weight in this sample of young women.