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Early solid feeding and recurrent childhood eczema: a 10-year longitudinal study
D M Fergusson1, L J Horwood, F T Shannon
1Department of Paediatrics, Christchurch School of Medicine, Christchurch Hospital, New Zealand.
Insights
Introducing diverse solid foods before four months is linked to higher risks of childhood eczema. Early diverse solid food exposure may predispose infants to eczema.
Area of Science:
- Pediatric Allergy and Immunology
- Nutritional Epidemiology
- Dermatology
Background:
- Recurrent or chronic eczema affects a significant portion of children.
- Understanding the environmental factors influencing eczema development is crucial for prevention.
Purpose of the Study:
- To investigate the association between early solid feeding practices and the risk of developing chronic or recurrent eczema in childhood.
- To determine if the diversity of solid foods introduced in the first four months impacts eczema risk.
Main Methods:
- A birth cohort study of New Zealand children followed up to age 10.
- Data collected on dietary diversity in the first four months and eczema diagnosis.
- Statistical analysis controlled for confounding factors like parental atopy and family background.
Main Results:
- By age 10, 7.5% of children had chronic or recurrent eczema.
- Significant associations were found between early dietary diversity and eczema risk.
- Children introduced to four or more solid foods before 4 months had 2.9 times the risk of eczema compared to those not exposed.
Conclusions:
- Early exposure to a diverse range of solid foods before four months is associated with an increased risk of childhood eczema.
- Dietary antigen exposure in early infancy may play a role in predisposing susceptible children to eczema.
- These findings suggest potential modifications to infant feeding guidelines to mitigate eczema risk.
Abstract:
The relationship between early solid feeding practices and risks of recurrent or chronic eczema in childhood was examined in a birth cohort of New Zealand children studied to the age of 10. By the age of 10 years, 7.5% of children had chronic or recurrent eczema. There were clear and consistent associations between the diversity of the child's diet during the first 4 months and risks of eczema. Even when due allowance was made for a range of confounding factors--including parental atopic illness, atopic illness in siblings, the child's early milk diet, and family social background--children exposed to four or more different types of solid food before 4 months had risks of recurrent or chronic eczema that were 2.9 times those of children who were not exposed to early solid feeding. It is concluded that early exposure to a diet diverse in potential food antigens may act to predispose susceptible children to recurrent or chronic childhood eczema.