Relationship of Serum Levels of IL-17, IL-18, TNF-α, and Lung Function Parameters in Patients with COPD, Asthma-COPD Overlap, and Bronchial Asthma

Table 1

Clinical characteristics of the examined patients with COPD, asthma-COPD overlap, and bronchial asthma.

	COPD	ACO	Bronchial asthma
	1	2	3
Subjects (/%)	58	57	32
Men	50 (86,3%)	23 (40%)	5 (15,6%)
Women	8 (13,7%)	34 (60%)	27 (84,4%)
Age (years)
Smokers (abs./%)	51/87,8	18/32,6	1/3,1
Smoking pack-years			9
FEV1 (after bronchodilator) (l)
FEV1 (after bronchodilator) (% pred)
FVC (l)
FVC (% pred)
FEV1/FVC (%)
IC (%)

Data were presented as . COPD: chronic obstructive pulmonary disease; ACO: asthma-COPD overlap; pack-years: number of cigarette packs per day multiplied by the number of smoking years; FEV1: forced expiratory volume in one second; % pred: % predicted; FVC: forced vital capacity, IC: inspiratory capacity (%).