Infante C, Lara W, Vío F
Hum Nutr Clin Nutr. 1985 Sep;39(5):379-86.
A heavy-water dilution technique has been used to measure mean daily breast-milk output in a group of nursing mothers from an urban community in Santiago, Chile. Infant milk intake was found to correlate significantly with weight (r = 0.646, P less than 0.005) and with weight-for-age (r = 0.640, P less than 0.005), but a much stronger and highly significant correlation was found with infant birth-weight (r = 0.802, P less than 0.001). Milk output was also found to depend on the mother's nutritional status at the beginning of pregnancy and was significantly higher in overweight mothers. An even more marked difference was obtained if mothers were divided into two subgroups, above and below normal, according to their weight-for-height values at the first antenatal check-up (x+ = 1148.1 ml/d, x- = 814.2 ml/d, P less than 0.02). Relationships between milk output and duration of lactation and parity were also apparent from the study but the latter was probably mediated through maternal nutritional status.
采用重水稀释技术测量了智利圣地亚哥一个城市社区中一组哺乳期母亲的每日平均母乳产量。发现婴儿的奶摄入量与体重（r = 0.646，P < 0.005）以及年龄别体重（r = 0.640，P < 0.005）显著相关，但与婴儿出生体重的相关性更强且高度显著（r = 0.802，P < 0.001）。还发现母乳产量取决于母亲怀孕初期的营养状况，超重母亲的母乳产量明显更高。如果根据首次产前检查时的身高体重值将母亲分为高于正常和低于正常两个亚组，则差异更为显著（x+ = 1148.1毫升/天，x- = 814.2毫升/天，P < 0.02）。研究中还明显看出母乳产量与哺乳期长短和胎次之间的关系，但后者可能是通过母亲的营养状况介导的。
