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  • Title: Patterns of quantitative food-specific IgE-antibodies and reported food hypersensitivity in 4-year-old children.
    Author: Ostblom E, Lilja G, Ahlstedt S, van Hage M, Wickman M.
    Journal: Allergy; 2008 Apr; 63(4):418-24. PubMed ID: 18162084.
    Abstract:
    BACKGROUND: Diagnosis of food hypersensitivity (FHS) is difficult and interpretation of food allergy tests is complicated. OBJECTIVE: To investigate the probability of reported FHS in relation to levels of food-specific IgE-antibodies (AB) in a population-based setting of 4-year-old children (n = 2336). METHODS: Information on FHS was obtained from a questionnaire and specific IgE-AB to milk, egg, fish, peanut, soy and wheat were analysed. RESULTS: Thirty-one per cent of the children with reported FHS (n = 284) were sensitized (> or =0.35 kU(A)/l) to at least one of the tested foods compared with 11% of children without FHS (n = 2052). Furthermore, the probability of reported symptoms to milk, egg and fish increased with increasing levels of food-specific IgE-AB to the same food allergens. A similar trend was seen for peanut and wheat, but not for soy. Increasing levels of specific IgE-AB to milk or egg were also associated with an increasing risk of reported symptoms caused by other foods. CONCLUSIONS: Quantitative measurements of IgE-AB to milk, egg and fish are useful to evaluate IgE-associated FHS in preschool children also in a population based sample. Such measurements appear to be of limited value for soy bean and wheat, in particular as a screening method.
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