Table 2.

Univariate and multivariate Cox proportional-hazards regression analyses for patients with PC

Characteristic	Univariate analysis		Multivariate analysis
	HR (95% CI)	P value	HR (95% CI)	P value
Age	1.284 (0.787-2.095)	0.316
Sex	1.385 (0.812-2.363)	0.232
Tumor size (cm)	1.364 (0.829-2.244)	0.222
Diferentiation status	1.042 (0.705-1.538)	0.837
Vascular invasion status	1.018 (0.621-1.670)	0.943
Neural tract invasion status	1.160 (0.699-1.925)	0.565
CA199 (U/ml)	1.001 (1.000-1.002)	0.014	1.000 (0.999-1.001)	0.847
AFP (ng/ml)	0.256 (0.760-1.076)	0.256
T stage	1.959 (1.241-3.094)	0.004	0.982 (0.584-1.651)	0.944
N stage	1.307 (0.911-1.876)	0.146
M stage	4.498 (2.548-7.939)	0.001	4.453 (2.244-8.837)	0.001
PRKAA1	1.991 (1.206-3.288)	0.007	1.879 (1.067-3.310)	0.029