Table 5.
Hazard ratio and 95% CI of overall survival according to the new histological classification
| Overall survival | |||||
|---|---|---|---|---|---|
| Negative for malignancy | Undetermined lesion | Positive for malignancy | |||
| Epithelial | Intramural | Epithelial | Intramural | ||
| Proximal margin | |||||
| Number of patients | 61 | 18 | 7 | 12 | 22 |
| Number of death | 35 | 11 | 6 | 5 | 20 |
| Hazard ratio † | 1.00 | 1.08 | 2.33 | 0.97 | 3.02 |
| 95% CI | 0.45–2.59 | 0.72–7.55 | 0.33–2.81 | 1.41–6.48 | |
| Distal margin | |||||
| Number of patients | 52 | 5 | 2 | 6 | 12 |
| Number of death | 34 | 4 | 1 | 5 | 9 |
| Hazard ratio † | 1.00 | 0.45 | 1.22 | 5.03 | 2.56 |
| 95% CI | 0.12–1.69 | 0.12–12.8 | 1.29–19.6 | 0.79–8.34 | |
†
Ajusted for icterus, dissected surgical margin, size of primary tumor, histological grade, hepatic or pancreatic invasion, major vessel invasion and lymph node metastasis.