Table 1.

Patient and tumor characteristics.

Age	Mean (years)	59.5
Gender	Male	56
	Female	0
Tobacco	Yes	50
	No	6
Pack years	Mean	41.4
	Median	40
T-classification	1	10
	2	16
	3	17
	4	13
N-classification	0	11
	1	4
	2a	4
	2b	18
	2c	16
	3	3