Table 2. Univariate and multivariate analyses for cancer-specific survival.

		Univariate analysis					Multivariate analysis
		CI 95%					CI 95%
Variable	Category	HR	Lower	Higher	p value		HR	Lower	Higher	p value
T stage	T3-4 vs T1-2	2.09	1.59	2.75	0.0001		1.56	1.14	2.13	0.004
N stage	N+ vs N0	3.49	1.84	6.60	0.001		1.25	1.01	2.68	0.02
M stage	M+ vs M0	6.15	3.44	10.97	0.0001		4.77	2.05	9.12	0.003
Grade	G3-4 vs G1-2	2.24	1.15	6.86	0.01		1.41	1.05	2.08	0.02
Necrosis	Yes vs No	2.06	1.18	3.86	0.01		-	-	-	-
Tumor size	Continuous	1.48	1.12	2.26	0.01		-	-	-	-
PTX3	>165.0 vs <165.0 pg/ml	2.41	1.21	6.31	0.001		1.86	1.05	2.86	0.01

CI: confidence interval; HR: hazard ratio.