Table 2.

Multivariate analysis of factors associated with overall survival in pancreatic cancer patients.

Variable	HR (95% CI)	P value
Age	1.003 (0.981-1.025)	0.817
Gender	0.995 (0.599-1.653)	0.984
Tumor size	2.992 (0.710-12.608)	0.135
Tumor differentiation	0.803 (0.463-1.390)	0.433
TNM stage	6.018 (1.731-23.550)	0.010∗
Lymph node metastasis	0.996 (0.482-1.313)	0.372
Distant metastasis	11.659 (2.038-32.516)	0.001∗
miR-7	0.325 (0.198-0.531)	0.000∗

HR: hazard ratio; CI: confidence interval. ^∗Statistically significant (P < 0.05).