Table 2.

Overall survival (OS) and disease-free survival (DFS) univariate analysis according to clinicopathological factors in 159 NSCLC patients

Variable	No. of patients	Percent (%)	6-Year OS rate (%)	P	6-Year DFS rate (%)	P
Gender
Female	50	31.4	24.0	0.008	20.0	0.003
Male	109	68.6	41.3		38.5
Age (years)
< 60	72	45.3	38.9	0.414	36.1	0.558
≥ 60	87	54.7	33.3		29.9
Smoking status
Never smoke	48	30.2	27.1	0.081	25.0	0.125
Smoke	111	69.8	39.6		36.0
Type of resection
Pneumonectomy	22	13.8	27.3	0.076	27.3	0.151
Lobectomy	132	83.0	36.4		32.6
Bronchial sleeve resection	5	3.1	60.0		60
Lesion
Peripheral	111	69.8	35.1	0.503	32.4	0.415
Central	48	30.2	37.5		33.3
Histologic subtyp
Squamous cell carcinoma	102	64.2	37.3	0.886	34.3	0.871
Adenocarcinoma	57	35.8	33.3		29.8
Location of tumor
Left	65	40.9	33.8	0.420	27.7	0.203
Right	94	59.1	37.2		36.2
Stage
I	43	27.0	60.5	<0.001	53.5	<0.001
II	52	32.7	44.2		40.4
III	64	40.3	12.5		12.5
HBXIP expression
Low	64	40.3	54.7	<0.001	51.6	<0.001
High	95	59.7	23.2		20.0