Table 1. NSCLC patient characteristics according to COPD status.

Characteristics	COPD (%) N = 193	Non-COPD (%) N = 132	p-value
Sex
Female	77 (51)	74 (49)	0.004†
Male	116 (66.7)	58 (33.3)
Age at diagnosis, Mean (±SD)	65.6 (±9.9)	60.6 (±10.8)	<0.001*
Histology
Adenocarcinoma	154 (59)	107 (41)	0.777†
Adeno-squamous	14 (66.7)	7 (33.3)
NSCLC-NOS	25 (58.1)	18 (41.9)
Smoking status#
Current or past smoker	184 (62.6)	110 (37.4)	<0.001†
Non-smoker	4 (18.2)	18 (81.8)
FEV1%, Mean (±SD)	72.8 (±18.7)	90.2 (±19.4)	-
FEV1/FVC ratio, Mean (±SD)	0.58 (±0.09)	0.76 (±0.05)	-
KRAS mutation#
Yes	66 (62.9)	39 (37.1)	0.404†
No	127 (58)	92 (42)
EGFR activating mutation#
Yes	9 (31)	20 (69)	0.001†
No	180 (61.9%)	111 (38.1)

* T-test;

^†Chi-square test;

^#Missing data for smoking (n = 9), KRAS (n = 1) and EGFR (n = 5) status.