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Title: The predictive value of specific immunoglobulin E on the outcome of milk allergy. Author: Rottem M, Shostak D, Foldi S. Journal: Isr Med Assoc J; 2008 Dec; 10(12):862-4. PubMed ID: 19160943. Abstract: BACKGROUND: Cow's milk allergy is the most prevalent food hypersensitivity, affecting 2-3% of infants, but it tends to resolve with age. Cow's milk-specific immunoglobulin E in the serum is an important measure in the diagnosis and follow-up of infants and children with cow's milk allergy. OBJECTIVES: To examine the relation between CmsIgE and the probability of resolution of milk allergy. METHODS: CMsIgE was determined in the serum of 1800 infants and children referred for the evaluation of possible milk allergy. All children with CmslgE of 1 kU/L or above were followed at the allergy clinic and, according to their condition, underwent milk challenge. The diagnosis of cow's milk allergy was made on the basis of a significant and specific history or a positive oral food challenge. Subsequently, oral tolerance was defined as an uneventful oral challenge. RESULTS: A total of 135 infants and children had milk-specific IgE greater than 1 kU/L. Forty-one percent of children still had clinical milk allergy after the age of 3 years. Sixty-eight percent of children older than 3 years with persistence of cow's milk allergy had milk-specific IgE > 3 IU/ml before the age of 1 year. Furthermore, 70% of children who at 3 years old had resolved their cow's milk allergy had milk-specific IgE that was lower than 3 IU/ml before the age of 1 year. The positive predictive value of CmsIgE > 3 IU/ml to persistent cow's milk allergy at age 3 years was 82.6% (P = 0.001), with a sensitivity of 67.9% and specificity of 70.4%. CONCLUSIONS: Milk-specific IgE concentration in the first year of life can serve as a predictor of the persistence of milk allergy.[Abstract] [Full Text] [Related] [New Search]