Table 1.

Baseline characteristics, spirometry and IOS measurements in 3 groups

Variable	Control	Asthma	COPD	P-value
N	87	87	56	-
Age (year)	37.6 ± 17.8	41.4 ± 15.5	64.1 ± 15.8	<0.0001
Male / Female	38 / 49	23 / 64	27 / 29	0.01
FVC(Lit)	3.6 ± 1	3 ± 0.8	2.2 ± 0.9	<0.0001
FEV1(Lit)	3.2 ± 0.9	2.2 ± 0.6	1.4 ± 0.6	<0.001
FEV1 / FVC (%)	88.2 ± 5.3	72.1 ± 10.1	63.6 ± 9.3	<0.001
R5(kpa.s/l)	0.40 ± 0.30	0.71 ± 0.42	0.66 ± 0.40	<0.001
R20(kpa.s/l)	0.32 ± 0.16	0.40 ± 0.13	0.40 ± 0.21	0.001
X5(kpa.s/l)	-0.12 ± 0.24	-0.20 ± 0.24	-0.33 ± 0.46	<0.0001