Data collection and analysis
Data were obtained from retrospective review of the medical records repository. Birth history, feeding history and personal and family history of atopic comorbidities were recorded. Outcomes of single versus multiple (≥ 2 individual food triggers), severe FPIES reactions (presence of vomiting and accompanying symptoms of floppiness, lethargy and pallor), and resolution of FPIES based on results of an in-hospital oral food challenge where available were recorded.