Table 1.

Patient characteristics.

Variables
Age (years), mean ± SD	13.9 ± 1.7
Female gender, n(%)	39 (38.6)
Male gender, n(%)	62 (61.3)
Body weight (kg), mean ± SD	54.9 ± 14.4
Height (cm), mean ± SD	163.6 ± 16
BMI (kg/m2) *, mean ± SD	20.1± 2.7
FEV1 (% best/pred.) **, mean ± SD	106.1 ± 14.4
FVC (% best/pred.) ***, mean ± SD	105.3 ± 13.6
FeNO (ppb) ****, mean ± SD	49.3 ± 36

* Body mass index; ** forced expiratory volume in 1 s; *** forced vital capacity; **** fractional exhaled nitric oxide.