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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.
Objectives:
This systematic review aimed to evaluate the association between breastfeeding and breathing patterns in children.
Materials And Methods:
We searched PubMed, EMBASE, Web of Science, CINAHL, and the Cochrane Central Register of Controlled Trials for publications from inception to October 1, 2017. The breastfeeding duration and period of exclusive breastfeeding were selected as primary outcomes. The odds ratio (OR) and 95% confidence interval (CI) were calculated. A meta-analysis was conducted to synthesize the evidence. The Newcastle-Ottawa Score was used for quality and comparability assessment.
Results:
Of the 54 articles identified, three observational studies met the inclusion criteria for this meta-analysis, representing 1,046 participants. The results of the meta-analysis revealed that the prevalence rate of mouth breathing (OR = 2.04; 95% CI, 1.26-3.31; p = 0.004) was significantly higher in subjects who were breastfed for less than 6 months, but no significant difference was observed within the periods of exclusive breastfeeding (6 months or less) (OR = 1.27; 95% CI, 0.73-2.21; p = 0.40).
Conclusion:
We found only limited evidence about the association between breastfeeding and breathing patterns. However, the current evidence supports the association between breastfeeding and childhood breathing patterns. Based on this review, we found that the frequency of normal nasal respiration increases with the duration of breastfeeding. The methodological quality of the studies included was moderate. Thus, future studies should aim to correct the confounding factors related to breathing patterns, to use standardized diagnostic criteria of mouth breathing, and to conduct a prospective research to reduce the recall bias.
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