Center for Breastfeeding Medicine, Perinatal Institute, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH 45233, USA.
Breastfeed Med. 2012 Apr;7(2):112-7. doi: 10.1089/bfm.2011.0029. Epub 2011 Jul 21.
This study was designed to determine which factors characterize mothers who expressed their milk by the end of 4 weeks postpartum as well as the duration for which they continued any breastmilk feeding.
This prospective longitudinal cohort study was conducted with women who donated their milk and clinical data to the Cincinnati Children's Research Human Milk Bank (Cincinnati, OH). We examined the characteristics and length of breastmilk feeding of mothers who expressed their milk within the first month postpartum compared with those mothers who only fed directly at the breast.
By the end of the first 4 weeks postpartum, 63% (37 of 59) of the mothers had begun milk expression. Predictors of milk expression by 1 month were planned work by 6 months, lower infant birth weight, and higher maternal body mass index. Milk expression by 4 weeks did not significantly influence duration of breastmilk feeding.
Breastmilk expression in this cohort was common even within the first month postpartum before mothers in the United States typically go back to work. "Breastfeeding" classification needs to be updated to include options for breastmilk expression so the appropriate study of health outcomes related to this practice can be determined.
本研究旨在确定哪些因素能描述在产后 4 周内完成吸乳的母亲，以及她们继续任何母乳喂养的持续时间。
本前瞻性纵向队列研究纳入向辛辛那提儿童研究人乳库（辛辛那提，俄亥俄州）捐赠母乳和临床数据的产妇。我们比较了在产后第一个月内开始吸乳的母亲与仅直接母乳喂养的母亲的母乳喂养特征和时长。
在产后的前 4 周内，63%（59 例中的 37 例）的母亲已经开始吸乳。到 1 个月时开始吸乳的预测因素包括计划在 6 个月时工作、较低的婴儿出生体重和较高的产妇体重指数。4 周时开始吸乳并不显著影响母乳喂养的持续时间。
即使在产后第一个月内，在美国母亲通常回去工作之前，本队列中就已经常见开始吸乳的情况。“母乳喂养”的分类需要更新，以包括吸乳的选择，以便确定与这种做法相关的健康结果的适当研究。
