Table 2.

The Comparison of Tumor Marker Index Based on Clinical Characteristics

		Mean	SD	p Value
Age	<65	0.652	0.604	0.83
	≥65	0.793	1.314
Gender	Male	0.729	0.549	0.37
	Female	0.79	1.622
Smoking status	Never	0.735	1.632	0.42
	Current/former	0.775	0.611
Histology	Adenocarcinoma	0.759	1.331	0.48
	Others	0.753	0.53
pStage	I	0.73	1.301	0.77
	II-III	0.841	0.647
pT status	pT1	0.66	0.544	0.88
	pT2-3	0.984	1.968
pN status	pN0	0.741	1.229	0.74
	pN1-2	0.858	0.754