Table 5.
No. patients | Medium survival rate (months) | 2‐year survival rate (%) | 5‐year survival rate (%) | P‐value for 5‐year survival rate | |
---|---|---|---|---|---|
Gender | |||||
Male | 45 | 23 | 43.7 | 11.0 | 0.074 |
Female | 25 | 18 | 29.3 | 0.0 | |
Tumor location | |||||
Head of pancreas/lesser pancreas | 50 | 21 | 38.3 | 6.2 | 0.907 |
Body and tail of pancreas | 20 | 21 | 40.0 | 10.0 | |
Tumor size | |||||
Diameter ≥4.0 cm | 40 | 21 | 33.6 | 3.1 | 0.459 |
Diameter <4.0 cm | 30 | 23 | 45.1 | 15.2 | |
Tumor differentiation | |||||
Low | 22 | 16 | 24.1 | 0.0 | 0.030 |
High | 48 | 23 | 45.1 | 11.7 | |
Major vascular invasion | |||||
Yes | 19 | 15 | 17.4 | 0 | 0.003 |
No | 51 | 23 | 46.4 | 10.1 | |
Lymphatic vessel invasion in adjacent tissue | |||||
Yes | 41 | 19 | 22.2 | 0 | <0.001 |
No | 29 | 29 | 60.8 | 18.9 | |
Lymph node metastasis | |||||
Positive | 37 | 18 | 22.3 | 0 | <0.001 |
Negative | 33 | 28 | 56.3 | 14.6 | |
PNP invasion | |||||
Positive | 47 | 20 | 26.7 | 0 | 0.001 |
Negative | 23 | 30 | 60.9 | 22.5 |
P‐values were calculated by the log‐rank test. PNP, peripancreatic nerve plexus.