IGHE and food allergy: Patients who revealed a history of food allergy and a positive response to one of the IgE-mediated tests (SPT and/or ImmunoCAP) or those with positive responses in both IgE-mediated tests to one or more food allergens were determined as having food allergy.[11,29,31] In contrast, in other studies the food challenge test was performed for a definite diagnosis.[16,25,37-40]