Table 4.
Univariate analysis of variables associated with survival in patients with pancreatic adenocarcinoma who underwent pancreaticoduodenectomy
| Variable | HR | 95% CI for HR |
P-value | |
|---|---|---|---|---|
| Lower | Upper | |||
| Size | 1.3 | 1.2 | 1.5 | <0.0001 |
| Grade | <0.0001 | |||
| Moderate | 1.2 | 0.8 | 1.8 | |
| Good | 2.7 | 1.7 | 4.5 | |
| Perineural invasion | 1.0 | 0.7 | 1.5 | 0.9 |
| Lymphovascular invasion | 1.4 | 1.0 | 2.0 | 0.03 |
| Positive lymph nodes | 2.1 | 1.5 | 3.1 | <0.0001 |
| T-stage | 0.1 | |||
| T1 | 0.2 | 0.07 | 0.8 | |
| T2 | 0.3 | 0.09 | 0.8 | |
| T3 | 0.3 | 0.1 | 0.9 | |
| Lymph node involvement | 2.0 | 1.4 | 3.0 | 0.0002 |
| R1 resection | 2.0 | 1.4 | 2.9 | 0.0003 |
| Age | 1.0 | 1.0 | 1.0 | 0.5 |
| Gender (female) | 1.0 | 0.7 | 1.3 | 1.0 |
| Aberrant right hepatic artery | 1.4 | 0.9 | 2.0 | 0.1 |
HR, hazard ratio; 95% CI, 95% confidence interval.