"Allergic Reactions to Foods in Preschool-Aged Children in a Prospective Observational Food Allergy Study"
http://pediatrics.aappublications.org/content/early/2012/06/20/peds.2011-1762.abstract (http://pediatrics.aappublications.org/content/early/2012/06/20/peds.2011-1762.abstract)
QuoteOver a median follow-up of 36 months (range: 0–48.4), the annualized reaction rate was 0.81 per year (367/512 subjects reporting 1171 reactions [95% confidence interval: 0.76–0.85]). Overall, 269/512 (52.5%) reported >1 reaction