Immunological parameters
Data of sIgE levels to egg white and ovomucoid for HE allergy, milk and casein for CM allergy, wheat and ω-5 gliadin for wheat allergy, and peanut and Ara h 2 for peanut allergies were measured using the ImmunoCAP assay system (Thermo Fisher Scientific/Phadia AB, Uppsala., Sweden). Thus, data that had been measured at the timepoint closest to the start of the study were used.