Study design and population
A five-year single-center, observational, retrospective study was
conducted, including Portuguese children (0-18 years-old) referred to
Food Allergy consultation for TN and/or peanut IgE-mediated allergy
suspicion between January 2017 and December 2021. The study was approved
by the hospital’s ethics committee and all patients’ parents/guardians
gave an informed consent.