Loris P, Dewey K G, Poirier-Brode K
J Am Diet Assoc. 1985 Oct;85(10):1296-305.
Data on weight gain during pregnancy were obtained for 145 subjects aged 13 to 19 years attending a teen obstetric clinic or one of four school programs for pregnant teenagers. Social and dietary intake data were collected from 57 of the subjects. Mean weight gain (37 +/- 16 lb) and infant birth weight (3,377 +/- 480 gm) were high. Maternal age was not related to weight gain or birth weight, but infants of subjects with a gynecologic age of less than 3 years were significantly lower in birth weight. When the father of the baby had a positive reaction to the pregnancy, both weight gain and birth weight were significantly higher. On the average, consumption from all food groups except dark green vegetables was adequate. Mean caloric and protein intakes based on one 24-hour recall per subject were 2,822 +/- 1,035 kcal and 110 +/- 48 gm, respectively. Mean intakes of all calculated nutrients except iron exceeded the RDAs. Dietary quality was better among subjects attending school programs that placed a greater emphasis on nutrition.
收集了145名年龄在13至19岁之间、前往青少年产科诊所或四个针对怀孕青少年的学校项目之一就诊的研究对象孕期体重增加的数据。从其中57名研究对象处收集了社会和饮食摄入数据。平均体重增加（37±16磅）和婴儿出生体重（3377±480克）较高。母亲年龄与体重增加或出生体重无关，但妇科年龄小于3年的研究对象所生婴儿的出生体重显著较低。当婴儿的父亲对怀孕有积极反应时，体重增加和出生体重均显著较高。平均而言，除深绿色蔬菜外，所有食物组的摄入量都足够。根据每位研究对象一次24小时回忆得出的平均热量和蛋白质摄入量分别为2822±1035千卡和110±48克。除铁外，所有计算营养素的平均摄入量均超过了推荐膳食摄入量。在更注重营养的学校项目中的研究对象，其饮食质量更好。
