INTRODUCTION: Formula supplementation among infants of breastfeeding Hispanic immigrants is common practice known as las dos cosas. The purpose of this study was to assess the feasibility, effectiveness, and acceptability of a culturally and linguistically diverse intervention to promote exclusive breastfeeding (EBF) for the first 6 months.

METHODS: A sample of 39 Hispanic pregnant women was recruited and randomly assigned to intervention (n = 20) and control groups (n = 19). The intervention included a peer counselor and professional support, and mothers were followed from pregnancy to 6 months after birth.

RESULTS: After the study, women assigned to the intervention group were over three times more likely to EBF their baby through all four postpartum assessed time points (odds ratio = 3.1, 95% confidence interval: 1.1-8.7).

DISCUSSION: This culturally and linguistically diverse intervention contributed to increased EBF duration and decreased formula supplementation in Hispanic mothers up to 6 months postpartum.

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Published in Journal of Pediatric Health Care, v. 33, issue 6.

© 2019 by the National Association of Pediatric Nurse Practitioners

© 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/.

The document available for download is the authors' post-peer-review final draft of the article.

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This project was supported by the NIH National Center for Advancing Translational Sciences through grant number UL1TR000117 and UL1TR001998. The content is solely the responsibility of the authors and does not necessarily represent the official views of the NIH.

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Research data for this study is available from ClinicalTrials.gov.

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