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Breastfeeding Duration and Exclusivity Among Early-Term and Full-Term Infants: A Cohort Study

Michele Galvão da Silva1, Rita Mattiello2, Bianca Del Ponte3

  • 1Postgraduate Program in Pediatrics and Child Health, Medical School, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.

Current Developments in Nutrition
|May 14, 2023
PubMed

Insights

Early-term infants (37-38 weeks) show similar exclusive breastfeeding rates at 3 months compared to full-term infants. However, they have a higher risk of stopping breastfeeding by 12 months.

Area of Science:

  • Pediatrics
  • Public Health
  • Nutrition Science

Background:

  • Early-term infants (37-38 weeks gestation) face increased risks for adverse outcomes.
  • Shorter breastfeeding duration is a noted concern for early-term infants compared to full-term infants.

Purpose of the Study:

  • To compare breastfeeding rates at 3 and 12 months between early-term and full-term infants.
  • To assess the risk of early cessation of breastfeeding in early-term infants.

Main Methods:

  • Analysis of two population-based birth cohorts in Pelotas, Brazil.
  • Comparison of early-term infants (37-38 weeks) with full-term infants (39-41 weeks).
  • Breastfeeding data collected via maternal interviews at 3 and 12 months; statistical analysis using Poisson regression.

Main Results:

  • No significant difference in exclusive breastfeeding at 3 months between early-term and full-term infants.
  • Early-term infants had a significantly lower prevalence of any breastfeeding at 12 months (38.2% vs. 42.4%).
  • Adjusted analysis revealed a 15% lower prevalence ratio for any breastfeeding at 12 months in early-term infants.

Conclusions:

  • Exclusive breastfeeding rates at 3 months are comparable between early-term and full-term infants.
  • Early-term infants are at a higher risk of being weaned before 12 months of age.
  • Findings highlight the need for continued breastfeeding support for early-term infants.
Abstract

Keywords:
Cohort studiesInfant, Prematurebreastfeedinggestational agerisk factors

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