Prevalence and risk factors for milk allergy overdiagnosis in the BEEP trial cohort.

Background: Cow's milk allergy (CMA) overdiagnosis in young children appears to be increasing and has not been well characterised. We used a clinical trial population to characterise CMA overdiagnosis and identify individual-level and primary care practice-level risk factors.

Methods: We analysed data from 1394 children born in England in 2014-2016 (BEEP trial, ISRCTN21528841).