Table 2.

Univariate and multivariate analysis for long term survivals

	Univariate analysis				Multivariate analysis
	p value	Odds ratio	95% CI		p value	Odds ratio	95% CI
			lower	upper			lower	upper
Sex (male/female)	0.029	2.10	1.01	4.37	0.270	1.59	0.70	3.61
Age(≤ 65/> 65))	0.278	0.78	0.50	1.22	NA	NA	NA	NA
Extent of resection (pneumonectomy/lobectomy)	0.041	1.59	1.02	2.49	0.410	1.24	0.75	2.06
Type of resection (Extrapleural resection vs chest wall resection)	0.145	0.70	0.43	1.13	0.257	1.42	0.77	2.62
Tumor size(≤ 5 cm/> 5 cm)	0.001	0.44	0.27	0.71	0.007	0.46	0.27	0.81
Lymphovascular invasion (no/yes)	0.151	0.66	0.38	1.16	0.126	0.62	0.34	1.14
N2 lymph node involvement (N0,1/N2)	0.029	0.57	0.35	0.94	0.000	0.34	0.19	0.61
R0resection (R0/R1,2)	0.000	0.32	0.18	0.56	0.000	0.26	0.13	0.49
Depth of invasion (superficial/deep)	0.148	0.72	0.46	1.12	0.035	0.56	0.33	0.96
Superior sulcus tumor (no/yes)	0.939	1.02	0.58	1.83	NA	NA	NA	NA
Completion of chemotherapy (no/yes)	0.000	3.18	1.86	5.41	0.000	4.83	2.47	9.43
Radiotherapy (no/yes)	0.618	0.89	0.57	1.40	NA	NA	NA	NA

NA; not available