New York University Rory Meyers College of Nursing, New York, New York, USA.
Department of Population Health, New York University School of Medicine, New York, New York, USA.
Breastfeed Med. 2021 Aug;16(8):607-613. doi: 10.1089/bfm.2021.0030. Epub 2021 Apr 7.
Disparities in breastfeeding patterns by race and ethnicity in the United States have been documented, and Latinx ethnicity is often associated with higher rates of breastfeeding initiation and longer breastfeeding duration compared to other U.S. racial and ethnic groups. Despite marked differences in infant feeding practices in Latinx countries of origin, U.S. breastfeeding data are routinely presented with Latinx as a single category. To analyze breastfeeding duration of New York City Latinx mothers by birth region. Using data from the 2016 New York City Work and Family Leave Survey (WAFLS) surveying residents who gave birth in 2014, we conducted a survival analysis of breastfeeding duration in a sample of Latinx-identifying mothers ( = 271), who reported having ever breastfed their child. Kaplan-Meier survival curves for time to breastfeeding cessation were created for four birth regions (United States, Caribbean, Mexico/Central America, and South America) and compared using the log-rank test. Adjusted hazard ratios (AHRs) were calculated using Cox regression. Survival curves and median breastfeeding duration were significantly different between the four regions. AHR models found that non-Caribbean birthplace was significantly associated with a lower risk of early breastfeeding cessation. Being partnered at the time of childbirth and neonate hospitalization of 6 days or longer was associated with a greater risk of earlier breastfeeding cessation. The significant differences reinforce the need to separate breastfeeding findings by birth region in the Latinx population. Within-group differences are lost in combined analyses and reinforce conclusions that Latinx mothers have optimal breastfeeding behaviors.
美国的研究已经证实了不同种族和民族之间母乳喂养模式的差异，与其他美国种族和民族相比，拉丁裔族群通常具有更高的母乳喂养起始率和更长的母乳喂养持续时间。尽管拉丁裔国家的婴儿喂养方式存在显著差异，但美国的母乳喂养数据通常将拉丁裔作为一个单一类别呈现。为了分析纽约市拉丁裔母亲的母乳喂养持续时间与其出生地区的关系。本研究利用 2016 年纽约市工作和家庭休假调查（WAFLS）的数据，该调查对象为 2014 年分娩的居民，对曾母乳喂养过孩子的拉丁裔母亲（n=271）进行了母乳喂养持续时间的生存分析。为四个出生地区（美国、加勒比地区、墨西哥/中美洲和南美洲）创建了母乳喂养终止时间的 Kaplan-Meier 生存曲线，并使用对数秩检验进行比较。使用 Cox 回归计算调整后的危险比（AHR）。四个地区的生存曲线和中位母乳喂养持续时间存在显著差异。AHR 模型发现，非加勒比地区的出生地与早期母乳喂养终止的风险降低显著相关。分娩时处于伴侣关系以及新生儿住院 6 天或以上与更早的母乳喂养终止风险增加相关。这些显著差异强调了在拉丁裔人群中按出生地区分离母乳喂养结果的必要性。在综合分析中，群体内差异会丢失，并强化了拉丁裔母亲具有最佳母乳喂养行为的结论。
