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Meta-Analysis
. 2022 May;18 Suppl 3(Suppl 3):e13368.
doi: 10.1111/mcn.13368. Epub 2022 Apr 30.

Impact of prelacteal feeds and neonatal introduction of breast milk substitutes on breastfeeding outcomes: A systematic review and meta-analysis

Rafael Pérez-Escamilla  1 , Amber Hromi-Fiedler  1 , Elizabeth C Rhodes  1 , Paulo A R Neves  2 , Juliana Vaz  3 , Mireya Vilar-Compte  4 , Sofia Segura-Pérez  5 , Kate Nyhan  6
Affiliations
Meta-Analysis

Impact of prelacteal feeds and neonatal introduction of breast milk substitutes on breastfeeding outcomes: A systematic review and meta-analysis

Rafael Pérez-Escamilla et al. Matern Child Nutr. 2022 May.

Abstract

The introduction of fluids other than breast milk during the first few days of life or later neonatal period has been identified as a risk factor for suboptimal breastfeeding (BF) outcomes in numerous studies using varying study designs. However, the relationship between early introduction of fluids other than breast milk and BF outcomes has not been systematically assessed using only prospective studies that can establish temporality, which is critical for determining whether observed associations are causal. We conducted a systematic review and meta-analysis of prospective studies to assess if there is a difference in BF outcomes as a result of the introduction of: (a) milk-based prelacteals, (b) water-based prelacteals and (c) breast milk substitutes (BMS) between 4 days and 4 weeks postpartum. We searched PubMed, Lilacs, Web of Science and other repositories for original research investigating the relationship between early introduction of prelacteals and/or BMS and BF outcomes. Forty-eight studies met the inclusion criteria for the systematic review. Of the 39 prelacteal feeding studies, 27 had the prerequisite statistical information for inclusion in the meta-analysis. Findings from the meta-analysis showed a relationship between prelacteals and exclusive BF cessation (RR 1.44; 1.29-1.60) and any BF cessation (2.23; 1.63-3.06) among infants under 6 months old. Nine studies focusing on the introduction of BMS during the neonatal period identified this practice as a statistically significant risk factor for a shorter BF duration. Effective interventions are needed to prevent the introduction of unnecessary milk-based prelacteals and BMS during the perinatal and neonatal periods to improve BF outcomes.

Keywords: breast milk substitutes; breastfeeding; infant feeding; meta-analysis; neonatal period; prelacteal feeds.

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Conflict of interest statement

The authors declare no conflicts of interest.

Figures

Figure 1
Figure 1
PRISMA diagram.
Figure 2
Figure 2
Assessment of study quality with Johan Briggs Institute protocol. Prelacteal feeds studies.
Figure 3
Figure 3
Assessment of study quality with Johan Briggs Institute protocol. Neonatal breast milk substitutes studies.
Figure 4
Figure 4
(a) Prelacteal feeds and exclusive breastfeeding cessation among infants under 6 months. (b) Prelacteal feeds and exclusive breastfeeding cessation among infants under 6 months. Only studies reporting impact measures for milk‐based prelacteals.
Figure 5
Figure 5
(a) Prelacteal feeds and any breastfeeding cessation among infants under 6 months. (b) Prelacteal feeds and any breastfeeding cessation among infants under 6 months. Only milk‐based prelacteals. (c) Prelacteal feeds and any breastfeeding cessation by 1 year.
Figure 5
Figure 5
(a) Prelacteal feeds and any breastfeeding cessation among infants under 6 months. (b) Prelacteal feeds and any breastfeeding cessation among infants under 6 months. Only milk‐based prelacteals. (c) Prelacteal feeds and any breastfeeding cessation by 1 year.
See this image and copyright information in PMC

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