Table 2. Cox univariate and multivariate proportional hazard model for factors affecting disease-free survival in PC cases.

Clinical parameters	Univariate analysis	Multivariate analysis
	P value	HR(95%CI)	P value
T stage (T1 vs. T2+T3)	0.015		0.320
Pathological grade (G1 vs. G2+G3)	0.268
Histological subtype (Usual vs. Others)	0.318
Nodal status (Negative vs. Positive)	<0.001	12.657 (2.782–57.587)	0.001
Pelvic LNM (No vs. Yes)	<0.001	15.295 (2.655–88.113)	0.002
High serum CXCL5 (≥442.75 pg/ml vs. <442.75 pg/ml)	<0.001	6.363 (2.185–18.531)	0.001