Breastfeeding and snoring: a birth cohort study
Bronwyn K Brew1, Guy B Marks1, Catarina Almqvist2
1Woolcock Institute of Medical Research, Sydney, New South Wales, Australia ; The University of Sydney Medical School, Sydney, New South Wales, Australia.
Plos One
|January 14, 2014
Summary
Breastfeeding for over one month significantly reduces the risk of habitual snoring and sleep apnea in children with a family history of asthma. This finding suggests a protective effect on upper airway development.
Area of Science:
- Pediatric Health
- Sleep Medicine
- Respiratory Health
Background:
- Childhood sleep-disordered breathing, including snoring and sleep apnea, is a growing concern.
- The impact of infant feeding practices on long-term respiratory health is not fully understood.
- Asthma and allergies are common in children and may influence sleep patterns.
Purpose of the Study:
- To examine the association between breastfeeding and the occurrence of habitual snoring and witnessed sleep apnea in children.
- To investigate if breastfeeding duration influences the risk of developing sleep-disordered breathing.
- To explore potential mediating factors such as BMI, asthma, atopy, and rhinitis.
Main Methods:
- Prospective cohort study of children with a family history of asthma, recruited antenatally.
- Infant feeding practices were recorded during the first year of life.
- Snoring and witnessed sleep apnea were assessed at age 8 years using parent-completed questionnaires and analyzed with logistic regression.
Main Results:
- 18.8% of children reported habitual snoring, and 2.7% experienced witnessed apnea.
- Breastfeeding for over one month was associated with a reduced risk of habitual snoring (adjusted OR 0.48) and witnessed sleep apnea (adjusted OR 0.17).
- Longer breastfeeding duration showed an inverse association with habitual snoring prevalence (adjusted OR 0.79).
Conclusions:
- Breastfeeding for more than one month offers protection against habitual snoring and witnessed sleep apnea in children with a family history of asthma.
- The protective effect is not explained by BMI, current asthma, atopy, or rhinitis.
- Potential mechanisms may involve improved oropharyngeal development due to breastfeeding, leading to reduced upper airway dysfunction.
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