Association Between Breastfeeding and Childhood Breathing Patterns: A Systematic Review and Meta-Analysis

Eun Hae Park1,2,3, Jae-Gon Kim2,3,4, Yeon-Mi Yang2,3,4

  • 11 Department of Radiology, Chonbuk National University Medical School and Hospital , Jeonju, Republic of Korea.

Insights

Breastfeeding for over 6 months is associated with a lower prevalence of mouth breathing in children. Longer breastfeeding duration correlates with increased normal nasal respiration, supporting its role in healthy breathing patterns.

Area of Science:

  • Pediatric Health
  • Respiratory Physiology
  • Public Health Nutrition

Background:

  • Childhood breathing patterns are crucial for overall health and development.
  • Breastfeeding is recognized for its numerous health benefits, but its specific impact on respiratory patterns requires further elucidation.
  • Understanding the link between infant feeding practices and respiratory outcomes can inform public health recommendations.

Purpose of the Study:

  • To systematically review and meta-analyze the association between breastfeeding duration and exclusive breastfeeding periods with childhood breathing patterns.
  • To synthesize current evidence on how breastfeeding influences the prevalence of mouth breathing versus nasal breathing in children.

Main Methods:

  • A comprehensive literature search was conducted across major databases (PubMed, EMBASE, Web of Science, CINAHL, Cochrane).
  • Inclusion criteria focused on observational studies examining breastfeeding and breathing patterns, with meta-analysis performed on extracted data.
  • The Newcastle-Ottawa Score assessed the quality and comparability of the included studies.

Main Results:

  • Three observational studies with 1,046 participants were included in the meta-analysis.
  • A significantly higher prevalence of mouth breathing was observed in children breastfed for less than 6 months (OR=2.04, 95% CI: 1.26-3.31).
  • No significant association was found between exclusive breastfeeding duration (≤6 months) and mouth breathing (OR=1.27, 95% CI: 0.73-2.21).

Conclusions:

  • Limited but supportive evidence suggests breastfeeding is associated with improved childhood breathing patterns.
  • Increased duration of breastfeeding appears to correlate with a higher frequency of normal nasal respiration.
  • Future research should address confounding factors, standardize mouth breathing diagnostics, and employ prospective designs to minimize bias.
Abstract

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