Abstract
IntroductionThe aim of this study was to assess sensitization to three food allergens in children followed for asthma and/or allergic rhinitis in African blacks in Benin. MethodsSkin prick-tests and REAST tests for IgE using 3 common food allergens — egg white, cow's milk and peanut — were carried out in children aged 3 to 15 years followed for asthma and/or allergic rhinitis. Positive results for the two methods were compared. ResultsOf the 130 children initially included, 11 were excluded for ineligibility for the prick-test. The study was conducted in 119 (91.5%) children who underwent both tests. The mean age was 7±1 years and the sex ratio (M/F) was 1.6. The most common association was rhinitis and asthma, seen in 66 (55.5%) children. The sensitization frequency with the prick-test and assay was 4.2% vs. 20% for egg white, 4.2% vs. 16.2% for milk and 3.4% vs. 0.0% for peanuts. ConclusionSensitization to egg white was the most common, followed by milk and peanut sensitization. A divergence was noted between prick-tests and REAST assay in the evaluation of sensitization for these food allergens.
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