Returning to Work and Breastfeeding Duration at 12 Months, WIC Infant and Toddler Feeding Practices Study-2
Returning to Work and Breastfeeding Duration at 12 Months, WIC Infant and Toddler Feeding Practices Study-2
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DOI：
10.1089/bfm.2021.0081
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发表时间：
2021-07-28
影响因子：
2.7
通讯作者：
Li, Ruowei
中科院分区：
文献类型：
--
作者：
Hamner, Heather C.;Chiang, Katelyn V.;Li, Ruowei
背景：重返工作岗位会影响母乳喂养时间；关于这可能如何影响低收入人群的数据有限。方法：使用美国农业部纵向研究 WIC 婴幼儿喂养实践研究 2 的数据，根据女性首次重返工作岗位时的婴儿年龄和工作状态（全职和兼职）评估母乳喂养持续时间（= 12 个月）。使用多变量逻辑回归来确定重返工作时间、工作状态以及组合（时间和工作状态）与母乳喂养持续时间之间的关联。结果：在产前工作并开始母乳喂养的女性中，20.2% 的母乳喂养时间≥12 个月。与未重返工作岗位的女性相比，全职或兼职重返工作岗位的女性母乳喂养时间 >= 12 个月的女性较少（分别为 34.1%、12.0% 和 20.0%，p < 0.0001）。工作状态对 12 个月以上的母乳喂养产生负面影响（全职调整优势比 [aOR]：0.24；95% 置信区间 [CI]：0.13, 0.44；兼职 aOR：0.51；95% CI：0.31, 0.83）。与未返回的女性相比，那些在出生后 3 个月内全职返回或在出生后 1 至 3 个月内部分时间返回的女性，母乳喂养 >= 12 个月的几率较低。结论：出生后 3 个月内重返工作岗位对 12 个月以上的母乳喂养产生负面影响，特别是对于那些全职返回工作岗位的人。支持产假和灵活工作时间的努力可以延长低收入人群的母乳喂养时间。本研究是在 ClinicalTrials.gov (NCT02031978) 上注册的研究。
Background: Returning to work can impact breastfeeding duration; limited data exist on how this may impact a lower income population. Methods: Data from U.S. Department of Agriculture's longitudinal study WIC Infant and Toddler Feeding Practices Study-2 were used to assess breastfeeding duration (= 12 months) by age of the baby when women first returned to work and work status (full time and part time). Multivariable logistic regression was used to determine the association of the timing of return to work, work status, and the combination (timing and work status) with breastfeeding duration. Results: Among women who had worked prenatally and initiated breastfeeding, 20.2% breastfed for >= 12 months. Compared to women who did not return to work, fewer women breastfed for >= 12 months if they returned full time or part time (34.1%, 12.0%, and 20.0%, respectively, p < 0.0001). Work status negatively impacted breastfeeding for >= 12 months (full-time adjusted odds ratio [aOR]: 0.24; 95% confidence interval [CI]: 0.13, 0.44 and part-time aOR: 0.51; 95% CI: 0.31, 0.83). Compared to women who did not return, those who returned full time within 3 months or returned part time >1 to 3 months after birth had lower odds of breastfeeding >= 12 months. Conclusions: Returning to work within 3 months after birth had a negative impact on breastfeeding for >= 12 months, particularly for those who returned full time. Efforts to support maternity leave and flexible work schedules could prolong breastfeeding durations among a low-income population. This study was a registered study at clinicaltrials.gov (NCT02031978).