Diagnostic criteria refer to those proposed in the international
consensus guidelines for the diagnosis and management of food
protein-induced enterocolitis syndrome. Patients who either met the
diagnosis criteria based on their history of symptoms or symptoms
exhibited during OFC were defined as wheat-FPIES patients.
Abbreviations: OFC, oral food challenge; FPIES, food protein-induced
enterocolitis syndrome; sIgE, specific immunoglobulin E; NA, not
applicable