Methods
atopy, atopic
ATOPY, THORACIC, ATOPIC
A total of 40 subjects covering a wide age range participated in the study. They were recruited through information on the website of our institute. Exclusion criteria were absolute and relative contraindications for CPET according to the American Thoracic SocietySpecific IgE antibodies (sIgE) to ubiquitous aeroallergens (atopy screen sx1, Phadiatop) were measured with the ImmunoCAP 250 system (ThermoFisher Scientific, Phadia AB, Uppsala, Sweden). A positive atopic status was assumed in case of a sIgE concentration to sx1 ≥ 0.35 kU/L.