Table 2.

Multivariate Cox regression analysis of histopathologic factors in 92 patients with pancreatic cancer

	p-value	HR	95% CI
R-status (R1vs R0)	0.87	1.038	0.65 - 1.65
Vascular invasion (Involved vs non- involved)	0.455	1.208	0.74 - 1.98
Perineural infiltration (Involved vs non- involved)	0.359	1.369	0.70 - 2.68
Tumour size (> 20 mm vs ≤ 20 mm)	0.315	1.434	0.71 - 2.90
COX-2 expression (Negative vs Positive)	0.047	1.642	1.01 - 2.68
Lymph node ratio (LNR) (> 0.2 vs ≤ 0. 2)	0.032	1.757	1.05 - 2.94