Abstract
Methods The Barwon region, located approximately 100 km south of Melbourne, is centred around the city of Geelong and has metropolitan, rural and coastal communities. The Barwon Infant Study (BIS) is a population-derived birth cohort study (n = 1069 infants). As part of the 12 month review infants undergo skin prick testing to five foods: cow’s milk, raw egg, peanut, cashew and sesame. Those with any detectable wheal size are offered a formal in-hospital oral food challenge using a validated protocol to determine their clinical allergy status.
Highlights
A recent study found that approximately 10% of 1 year old infants living in Melbourne, Australia have challenge proven food allergy; which is the highest reported rate in the world
The prevalence of IgE-mediated food allergy among Australian infants living outside a major metropolitan city has not been measured
For each specific food the rates are: raw egg 37 (68.5%; 95% CI, 54.4-80.4), peanut 6 (46.1%; 95% CI, 19.2-74.8), cashew 1 (16.6%; 95% CI, 0.4-64.1), sesame 1 (50%; 95% CI, 12.5-98.7) and cow’s milk 2 (50%; 95%CI, 6.7-93.2)
Summary
A recent study found that approximately 10% of 1 year old infants living in Melbourne, Australia have challenge proven food allergy; which is the highest reported rate in the world. The prevalence of IgE-mediated food allergy among Australian infants living outside a major metropolitan city has not been measured
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