Table 1.

Clinical characteristics of 80 non–small cell lung cancer (NSCLC) patients who had undergone surgical resection

	N = 80	%
Age (median, y)	68 (36‐83)
Female	36	45
Never smoker	37	46
Histologic type
Adenocarcinoma	73	91
Squamous carcinoma	7	9
Stage
I	57	71
II	15	19
III/IV	8	10
Vascular invasion
Negative	56	70
Positive	24	30
Lymphatic invasion
Negative	65	81
Positive	15	19
EGFR mutation
Wild type	16	20
Mutated	29	36
Unknown	35	44

EGFR, epidermal growth factor receptor.