Dissimilar survival and clinicopathological characteristics of mucinous adenocarcinoma located in pancreatic head and body/tail

Table 2 Cox regression analysis of overall survival in patients with pancreatic mucinous adenocarcinoma

Characteristics	Univariate			Multivariate
	HR	95%CI	P value	HR	95%CI	P value
Age, yr
< 65	Reference			Reference
≥ 65	1.62	1.23-2.14	0.001	1.42	1.06-1.89	0.017
Race
Black	Reference
Other	0.91	0.54-1.53	0.725
White	0.94	0.62-1.41	0.751
Sex
Female	Reference			Reference
Male	0.68	0.52-0.89	0.004	0.81	0.61-1.07	0.134
Location
Pancreas body/tail	Reference			Reference
Pancreas head	0.61	0.47-0.8	< 0.001	0.76	0.57-1.01	0.057
Grade
G1 + G2	Reference			Reference
G3 + G4	1.82	1.21-2.73	0.004	2.17	1.43-3.31	< 0.001
Unknown	2.21	1.64-2.97	< 0.001	1.23	0.89-1.69	0.216
Stage
I	Reference			Reference
II	2.39	1.3-4.37	0.005	3.2	1.73-5.92	< 0.001
III	6.2	2.81-13.68	< 0.001	6.5	2.89-14.61	< 0.001
IV	6.73	3.67-12.37	< 0.001	6.2	3.34-11.5	< 0.001
Systemic therapy
No	Reference			Reference
Yes	0.32	0.24-0.44	< 0.001	0.39	0.27-0.56	< 0.001

HR: Hazard ratio; CI: Confidence interval.