Table 1.
Basis clinical data. *In some patients (38 in test set and 26 in validation set) Pn state remains unknown.
| Test set (n = 93) | Validation set (n = 41) | ||
|---|---|---|---|
| Age (years) | Median [min -max] | 65 [28–84] | 67 [47–85] |
| Sex | female | 40 (43%) | 16 (39%) |
| male | 53 (57%) | 25 (61%) | |
| T-Status | T0/T1 | 3 (3%) | 3 (7%) |
| T2 | 10 (11%) | 6 (14%) | |
| T3 | 71 (76%) | 31 (76%) | |
| T4 | 9 (10%) | 0 | |
| Nodal State | negative | 19 (20%) | 20 (49%) |
| positive | 74 (80%) | 21 (51%) | |
| Metastasis | M0 | 92 (99%) | 40 (98%) |
| M1 | 1 (1%) | 1 (2%) | |
| Pn-State* | Pn 0 | 6 (6%) | 2 (5%) |
| Pn 1 | 49 (53%) | 13 (32%) | |
| Grading* | G1 | 1 (1%) | 1 (2%) |
| G2 | 68 (73%) | 21 (51%) | |
| G3 | 24 (26%) | 8 (20%) | |
| Resection State | R0 | 56 (61%) | 34 (83%) |
| R1 | 37 (39%) | 7 (17%) | |
| Tumor localization | Caput | 70 (75%) | 34 (83%) |
| Papilla vaterii | 14 (15%) | 0 (0%) | |
| Corpus | 4 (4%) | 4 (10%) | |
| Tail | 5 (5%) | 3 (7%) | |
| Surgery | Pylorus preserving partial pancreatectomy | 69 (74%) | 31 (76%) |
| Classical partial pancreatoduodenectomy | 14 (15%) | 1 (2%) | |
| Total pancreatectomy | 6 (7%) | 5 (12%) | |
| Distal pancreatectomy | 4 (4%) | 4 (10%) | |
| Preoperative chemotherapy | 3 (3%) | 7 (17%) | |