Samuels S E, Margen S, Schoen E J
Am J Clin Nutr. 1985 Sep;42(3):504-10. doi: 10.1093/ajcn/42.3.504.
A breast-feeding incidence and duration study in a heterogeneous population confirmed the increased incidence of breast-feeding reported among American women. Of 632 women delivering between May and August of 1980, 66% chose to breast-feed, a decision determined to be significantly related to race, age, marital status, and parity. Cesarean deliveries discouraged breast-feeding, whereas nursing immediately after delivery and keeping the infant in the room during the hospital stay encouraged breast-feeding. Of 417 women who were breast-feeding, 58% had stopped by four months postpartum, a decision found to be related significantly to race, age, and receiving formula in the hospital. Formula supplementation in the hospital was associated with a shorter breast-feeding period. The most rapid decline in breast-feeding occurred in the first two weeks postpartum. Because this is the period in which women are most likely to discontinue breast-feeding, it could be a productive target period for support and assistance by health professionals.
一项针对异质人群的母乳喂养发生率及持续时间的研究证实了美国女性中母乳喂养发生率上升的情况。在1980年5月至8月分娩的632名女性中，66%选择母乳喂养，这一决定被确定与种族、年龄、婚姻状况和胎次显著相关。剖宫产不利于母乳喂养，而产后立即哺乳以及住院期间让婴儿留在病房则鼓励母乳喂养。在417名进行母乳喂养的女性中，58%在产后四个月时停止了母乳喂养，这一决定被发现与种族、年龄以及在医院接受配方奶喂养显著相关。在医院补充配方奶与较短的母乳喂养期相关。母乳喂养下降最快的时期是产后的前两周。由于这是女性最有可能停止母乳喂养的时期，因此它可能是卫生专业人员提供支持和援助的有效目标时期。
