TABLE 2

F_ENO₅₀ and NO parameters expressed as median (upper and lower quartiles), before and after V′_O₂_max test for all subjects together as a group and also divided into nonasthma and declared asthma groups

	All (n=25)			Nonasthma (n=17)			Asthma (n=8)
	Before	After	p-value	Before	After	p-value	Before	After	p-value
F_ENO₅₀ ppb	17 (11–24)	11 (7–17)	<0.001	17 (10–24)	11 (7–18)	<0.001	16 (13–28)	13 (8–16)	0.012
J_awNO nL·s⁻¹	0.91 (0.60–1.57)	0.63 (0.33–0.90)	<0.001	0.74 (0.55–1.57)	0.63 (0.26–0.88)	<0.001	0.93 (0.68–1.67)	0.69 (0.42–0.94)	0.093
C_awNO ppb	52 (36–81)	43 (31–73)	0.427	51 (24–64)	36 (31–96)	0.554	64 (45–131)	51 (33–59)	0.036
D_awNO mL·s⁻¹	20 (15–25)	16 (8–19)	0.032	21 (16–25)	11 (7–18)	0.004	16 (8–24)	19 (11–22)	0.401
C_ANO ppb	1.6 (1.1–1.9)	1.9 (1.6–2.4)	0.006	1.5 (1.0–1.9)	2.0 (1.6–2.8)	0.005	1.6 (1.4–2.0)	1.7 (1.4–2.0)	0.401

Data are presented as median (interquartile range), unless otherwise stated. F_ENO₅₀: baseline exhaled nitric oxide fraction; V′_O₂max: maximal oxygen uptake; J_awNO: the airway flux of NO; C_awNO: content of NO in the airway wall; D_awNO: diffusing capacity of NO; C_ANO: alveolar NO.