Table 1

Clinical characteristics of all non-small cell lung cancer patients used in this study

Variable	Category			No. of patients (n = 230)		Median survival (yrs)
Gender	Male			166		2.8
	Female			64		4.6
Mean age ± SD (yrs)				64.6 ± 9.2 (36–86)
Stage	I			115	]	4.2
	II			29	]	4.2
	III			30	]	1.3
	IV			7	]	1.3
Vital status	Alive			52		7.3^a
	Dead	[	Tumor related	46		1.6
			Other cause	20		1.7
			Unknown	80		2.8
Median follow-up (yrs)				3.2 ± 3.2