Table 2.

Patients’ demographics and functional respiratory parameters.

	n = 129
Male n (%)	79 (61.2%)
Mean Age (±SD)	63.7 (±2.3)
Active smokers n (%)	76 (58.9%)
Mean follow-up in years (±SD)	3.7 (±2.3)
FVC ± SD (% predicted)	81 (±19)
FEV1 ± SD (% predicted)	81(±20)
DLCO ± SD (% predicted)	54 (±20)
KCO ± SD (% predicted)	82 (±25)
TLC ± SD (% predicted)	77 (±17)

PFT: pulmonary function test; VC: vital capacity; FEV1: forced expiratory volume; DLCO: diffusing lung capacity for carbon monoxide; KCO: transfer coefficient for carbon monoxide for the lung; SD: standard deviation.