Allergies in High-Risk Schoolchildren After Early Intervention With Cow's Milk Protein Hydrolysates: 10-year Results From the German Infant Nutritional Intervention (GINI) Study

J Allergy Clin Immunol. 2013 Jun;131(6):1565-73. doi: 10.1016/j.jaci.2013.01.006. Epub 2013 Mar 16.

Abstract

Background: The long-term effect of nutritional intervention with hydrolysate infant formulas on allergic manifestations in high-risk children is uncertain.

Objective: We sought to investigate the effect of hydrolysate infant formulas on allergic phenotypes in children with family history of allergies at school age.

Methods: We analyzed data from participants of the prospective German Infant Nutritional Intervention study after 10 years of follow-up. At birth, children were randomly assigned to receive, for the first 4 months, one of 4 blinded formulas as breast milk substitute, if necessary: partially hydrolyzed whey formula (pHF-W), extensively hydrolyzed whey formula (eHF-W), extensively hydrolyzed casein formula (eHF-C), or standard cow's milk formula. Outcomes were parent-reported, physician-diagnosed allergic diseases. Log-binomial regression models were used for statistical analysis.

Results: The relative risk for the cumulative incidence of any allergic disease in the intention-to-treat analysis (n = 2252) was 0.87 (95% CI, 0.77-0.99) for pHF-W, 0.94 (95% CI, 0.83-1.07) for eHF-W, and 0.83 (95% CI, 0.72-0.95) for eHF-C compared with standard cow's milk formula. The corresponding figures for atopic eczema/dermatits (AD) were 0.82 (95% CI, 0.68-1.00), 0.91 (95% CI, 0.76-1.10), and 0.72 (95% CI, 0.58-0.88), respectively. In the per-protocol analysis (n = 988) effects were stronger. The period prevalence of AD at 7 to 10 years was significantly reduced with eHF-C in this analysis, but there was no preventive effect on asthma or allergic rhinitis.

Conclusion: The significant preventive effect on the cumulative incidence of allergic diseases, particularly AD, with pHF-W and eHF-C persisted until 10 years without rebound, whereas eHF-W showed no significant risk reduction. There is insufficient evidence of ongoing preventive activity at 7 to 10 years of age.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Cattle
  • Child
  • Child, Preschool
  • Early Medical Intervention*
  • Follow-Up Studies
  • Humans
  • Hypersensitivity / epidemiology*
  • Hypersensitivity / prevention & control*
  • Incidence
  • Infant
  • Infant, Newborn
  • Milk Proteins / administration & dosage
  • Milk Proteins / immunology*
  • Outcome Assessment, Health Care
  • Prevalence

Substances

  • Milk Proteins