Table 2 Pearson correlation coefficients (r) of baseline variables with airway hyperresponsiveness (dose response ratio, DRR) for the asthmatic group as a whole and for the treatment subgroup before and after treatment.

	Baseline asthma group (n = 40)		Baseline treatment subgroup (n = 18)		Post‐treatment treatment subgroup (n = 18)
	r	p Value	r	p Value	r	p Value
Airway inflammation (FENO)	0.62	<0.001	0.51	0.03	0.61	0.008
Ventilation heterogeneity (Scond)	0.63	<0.001	0.64	0.004	0.82	<0.001
Ventilation heterogeneity (Sacin)	0.07	0.67	0.04	0.86	−0.02	0.93
Ventilation heterogeneity (LCI)	0.38	0.02	0.31	0.21	0.47	0.05
FEV1 % predicted	−0.44	0.005	−0.40	0.10	−0.37	0.13
FEV1/FVC ratio	−0.47	0.002	−0.34	0.17	−0.21	0.41

FEV₁, forced expiratory volume in 1 s; Fe_NO, fraction of nitric oxide in exhaled breath; FVC, forced vital capacity; LCI, lung clearance index; S_cond, ventilation heterogeneity in conducting airways; S_acin, ventilation heterogeneity in acinar lung zone