Table 1.

Characteristics of subjects providing airway smooth muscle cells for culture

	Non-smokers	Smokers	COPD
n	9	9	9
Age (y)	66.4 ± 12.72	59.2 ± 7.6	65.4 ± 6.6
Sex (♂ - ♀)	7–2	4–5	5–5
Pack years smoking	N/A	29.25 ± 3.3	38.32 ± 2.92
FEV1 (L)	4.02 ± 0.48	3.12 ± 0.78	1.76 ± 0.45
FEV1 (% predicted)	104.23 ± 7.28	101.5 ± 4.51	77 ± 21.97
FEV1:FVC (%)	78.89 ± 5.98	77.57 ± 3.32	38.88 ± 15.75

Definition of abbreviations: FEV₁ forced expiratory volume, FVC forced vital capacity

Data shown as mean ± SEM