Table 1.

The Patients’ Characteristics

		No. of Patients	%
Age	>=65	86	55.1
	<65	70	44.9
Gender	male	75	48.1
	female	81	51.9
Smoking	+	89	57.1
	-	67	42.9
Stage	IA	78	50.0
	IB	31	19.9
	IIA	20	12.8
	IIB	9	5.7
	IIIA	18	11.5
Tumor Size	>=3.0cm	57	36.5
	<3.0cm	99	63.5
LN metastasis	+	33	21.2
	-	123	78.8
Differentiation	1.2	142	91.0
	3.4	14	9.0
GPS	0.0	136	87.2
	1.0	16	10.3
	2.0	4	2.5