Breast feeding, eczema, asthma, and hayfever

Area of Science:

• Pediatrics
• Allergy and Immunology
• Public Health

Background:

• Atopic illnesses, including eczema, hayfever, and asthma, are common in childhood.
• The role of breastfeeding in preventing or exacerbating these conditions remains a subject of research.
• Understanding these associations is crucial for public health recommendations.

Purpose of the Study:

• To investigate the association between breastfeeding and the incidence of atopic illnesses in children up to five years of age.
• To determine if breastfeeding offers protection against eczema, hayfever, and asthma.
• To identify factors that may influence the relationship between breastfeeding and atopic diseases.

Main Methods:

• A national study involving 13,135 children, assessed at birth and at five years of age.
• Data collected on breastfeeding status, eczema, hayfever, asthma, and wheezing.
• Statistical analysis to adjust for social, familial, and socioeconomic factors.

Main Results:

• Eczema was reported more frequently in breastfed children, persisting after controlling for confounding factors.
• Breastfeeding showed a non-significant positive association with hayfever after adjustments.
• No significant influence of breastfeeding on reported asthma rates was observed.
• "Any wheezing" was more common in non-breastfed children, but this disappeared after adjusting for parental asthma and maternal smoking.

Conclusions:

• Breastfeeding does not appear to protect against childhood atopic diseases.
• The observed positive association between breastfeeding and eczema warrants further investigation into diagnostic accuracy or potential environmental exposures.
• Further research is needed to elucidate the complex relationship between infant feeding practices and allergic outcomes.