Effect of prolonged breast-feeding on risk of atopic dermatitis in early childhood

Soyoung Hong1, Won-Jun Choi, Ho-Jang Kwon

  • 1Department of Environmental Health Research, Seoul Medical Center, Seoul, Republic of Korea.

Insights

Prolonged breast-feeding increases atopic dermatitis risk in young Korean children. This association was not observed in older children, indicating age-specific effects of breastfeeding on eczema development.

Area of Science:

  • Pediatrics
  • Allergology
  • Epidemiology

Background:

  • The relationship between breastfeeding and atopic disease development is debated.
  • Atopic dermatitis (AD) is a common condition in childhood.

Purpose of the Study:

  • To investigate the effect of breastfeeding on the prevalence of current atopic dermatitis (AD) in Korean children.
  • To explore age-specific associations between breastfeeding duration and AD risk.

Main Methods:

  • Cross-sectional study involving 10,383 Korean children aged 0-13 years.
  • Data collected via parental questionnaires on AD history and environmental factors.
  • Diagnostic criteria from the International Study of Asthma and Allergies in Childhood were used.

Main Results:

  • Prolonged breastfeeding (>12 months) was a significant risk factor for AD in children aged ≤5 years (p < 0.001).
  • No significant association between breastfeeding and AD was found in children >5 years of age.
  • The risk of AD associated with breastfeeding was independent of parental history of atopic diseases.

Conclusions:

  • Breastfeeding duration is a significant factor in the development of atopic dermatitis in young children.
  • The impact of breastfeeding on AD risk is age-dependent, with prolonged breastfeeding posing a higher risk for children under five.
  • Findings suggest tailored infant feeding recommendations may be beneficial for preventing AD.

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