Table 1

Subjects	Age(yr)	Height(m)	Weight(kg)	FEV1/FVC	Bronchial Challenge	FeNO(ppb)
Asthmatics	26.1 ± 4.4	1.81 ± 0.06	75 ± 6.7	0.78 ± 0.09*	-21.7 ± 3.7% PD in FEV1*	28.1 ± 9.7*
Non-asthmatics	23 ± 2.4	1.81± 0.04	75.5 ± 5.9	0.84 ± 0.05	-5.9 ± 3.4% PD in FEV1	14.8 ± 3.4

Table 1: FEV1/FVC, forced expired volume 1 s / Forced Vital Capacity; Bronchial Challenge to metacholine, PD > 20% in FEV1 was considered a positive test; FeNO(ppb), fractional exhaled nitric oxide. *Significant (p<0.05) difference between asthmatics and controls. Mean ± SD.