Table 1.

Clinicopathologic and molecular characteristics

Characteristic	Number (n = 100)
Median age (range)	66 (41–84)
Sex
Male	52
Female	48
Race
Caucasian	90
Other	10
Smoking
Never	7
Ever	93
Stage
I	48
II	27
III	25
Histology
Adenocarcinoma	61
Squamous	39
EGFR
Mutated	7
Wild-type	45
KRAS
Mutated	39
Wild-type	21
Not available	40
Recurrence	45