Table 1.

Validation cohort patient characteristics.

	Wildtype (n = 109)	EGFR (n = 114)	p Value
Age (avg ± SD)	55.6 ± 10.6	56.6 ± 10.1	0.444
Sex			<0.001
Male	80	47
Female	29	67
Smoking status			<0.001
Smoking	54	30
No smoking	55	84
Stage			0.455
I	1	4
II	5	4
III	21	15
IV	62	65
Unknown	20	26
N-Stage			0.541
N1	51	54
N2	32	27
Unknown	26	33
Differentiation			<0.001
Low	72	38
Well	32	66
Unknown	5	10