Frisancho A R, Matos J, Bollettino L A
Am J Clin Nutr. 1984 Oct;40(4):801-7. doi: 10.1093/ajcn/40.4.801.
To investigate the determinants of fetal maturation of infants born to adolescent mothers, we studied the obstetric population attended at the Maternity Hospital of Lima, Peru. From this population we selected for inclusion in this study a sample of 412 adolescent mothers ranging in age from 13 to 15 yr. These subjects were selected because the anthropometric measurements of their parents were obtained at the time the adolescents were being attended for delivery. Based on the height measurements of the teenagers' mothers and fathers, the adolescents were classified as either still growing or growth completed depending on whether their height was less or greater than their mothers' height. Infants of young adolescent mothers who had not completed their expected growth in height were significantly lighter in birth weight than those born to adolescent mothers who had completed their growth. Multiple regression and path analyses revealed that the effects of weight gain and placenta weight on birth weight were more effective among the infants born to adolescent mothers who had not completed their growth in height. These data suggest that the reduction in birth weight among immature still-growing adolescents may result from both a decreased net availability of nutrients and/or an inability of the placenta to function adequately for active fetal growth, which results in a retarded fetal growth.
为了研究青春期母亲所生孩子的胎儿成熟度的决定因素，我们对秘鲁利马妇产医院接待的产科人群进行了研究。从该人群中，我们选取了412名年龄在13至15岁之间的青春期母亲作为本研究的样本。选择这些受试者是因为在她们分娩时获得了其父母的人体测量数据。根据青少年母亲和父亲的身高测量结果，根据青少年的身高低于还是高于其母亲的身高，将他们分类为仍在生长或生长已完成。身高未达到预期生长的年轻青春期母亲的婴儿出生体重明显低于生长已完成的青春期母亲所生的婴儿。多元回归和路径分析表明，体重增加和胎盘重量对出生体重的影响在身高未完成生长的青春期母亲所生的婴儿中更为显著。这些数据表明，未成熟仍在生长的青少年出生体重降低可能是由于营养物质净供应量减少和/或胎盘无法充分发挥功能以支持胎儿积极生长，从而导致胎儿生长迟缓。
