Data were presented as mean ± SD, median, min-max, or n (%) unless otherwise stated. P < 0.05 was considered a statistically significant difference. SRDB, sleep-related breathing disorders; BMI, body mass index; AR, allergic rhinitis; FeNO, exhaled nitric oxide; ICS, inhaled corticosteroid; AIT, allergen immunotherapy; SD, standard deviation; FEV, forced vital capacity; FEV1, forced expiratory volume in 1 second; PEF, peak expiratory flow; min-max, minimum and maximum interquartile range. The variables with statistical differences are indicated in bold.