Background:

Supplementation in the newborn nursery has been associated with shorter breastfeeding duration. However, supplementation may at times be necessary.

Research Aim:

To determine the association between type of supplementation in the newborn nursery (mother’s own milk, formula, donor human milk) and breastfeeding outcomes at 2 and 6 months of age.

Methods:

This was a prospective, longitudinal, observational multi-group cohort study. In total, 2,343 surveys were sent to parents who, prior to delivery, indicated intent to exclusively breastfeed. Participants were grouped by type of nursery supplementation. Surveys asked about breastfeeding outcomes when infants were 2 and 6 months old. Our final analytic sample included data from 1,111 healthy newborns ≥ 35 weeks. We used multiple logistic regression to compare future breastfeeding outcomes for infants who were exclusively directly breastfed or who received supplementation during their birth hospitalization.

Results:

Both the donor human milk and formula groups had decreased breastfeeding at 2 and 6 months compared to the exclusively directly breastfed group. Notably, for infants who received formula compared to donor human milk, the odds of breastfeeding at 2 and 6 months were 74% and 58% lower, respectively (OR = 0.26, 95% CI [0.12, 0.56] at 2 months; OR = 0.42, 95% CI [0.19, 0.94] at 6 months). The donor human milk group had lower odds of breastfeeding at both follow up times compared to the mother’s own milk group.

Conclusion:

Among those who intend to breastfeed, supplementation with donor human milk instead of formula in the newborn nursery may support longer breastfeeding.

中文翻译：

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新生儿托儿所补充剂类型与 2 个月和 6 个月大母乳喂养结果之间的关联

背景：

新生儿托儿所的补充剂与较短的母乳喂养时间有关。但是，有时可能需要补充。

研究目的：

确定新生儿托儿所补充剂类型（母亲自己的乳汁、配方奶、捐赠人乳）与 2 个月和 6 个月大时的母乳喂养结果之间的关联。

方法：

这是一项前瞻性、纵向、观察性多组队列研究。总共向在分娩前表示打算纯母乳喂养的父母发送了 2,343 份调查。参与者按托儿所补充剂的类型分组。调查询问了婴儿 2 个月和 6 个月大时的母乳喂养结果。我们的最终分析样本包括来自 1,111 名 ≥ 35 周的健康新生儿的数据。我们使用多元逻辑回归来比较完全直接母乳喂养或在出生住院期间接受补充的婴儿的未来母乳喂养结果。

结果：

与完全直接母乳喂养组相比，捐赠母乳和配方奶粉组在 2 个月和 6 个月时的母乳喂养次数均有所减少。值得注意的是，与捐赠母乳相比，接受配方奶的婴儿在 2 个月和 6 个月时进行母乳喂养的几率分别降低 74% 和 58%（2 个月时 OR = 0.26, 95% CI [0.12, 0.56] ； OR = 0.42, 95% CI [0.19, 0.94] 在 6 个月）。与母亲自己的母乳组相比，捐赠母乳组在两次随访中母乳喂养的几率都较低。

结论：

在那些打算母乳喂养的人中，在新生儿保育室补充捐赠母乳而不是配方奶可能有助于延长母乳喂养时间。