Table 1.
Summary of Clinicopathological Features of PNET Patients.
| Clinical Features of PNET Patients | Number = 306 | |
|---|---|---|
| Gender (%) | Male | 130 (42.5) |
| Female | 176 (57.5) | |
| Median age at surgery (range) | Male | 51 (15–85) |
| Female | 47 (17–84) | |
| PNET function-type (%) | Functional | 177 (57.8) |
| Non-functional | 129 (42.2) | |
| PNET subgroup (%) | Insulinoma | 151 (49.3) |
| Non-insulinoma | 165 (50.7) | |
| Metastasis (%) | No metastasis | 233 (76.1) |
| Metastasis | 73 (23.9) | |
| LN metastasis only | 42 (13.7) | |
| Distant metastasis | 48 (15.7) | |
| Hepatic | 41 (13.4) | |
| others | 11 (3.6) | |
| Grade (%) n = 252 | G1 | 140 (55.6) |
| G2 | 106 (42.1) | |
| G3 | 6 (2.4) | |
| Stage (%) n = 305 | I | 95 (31.1) |
| II a | 98 (32.1) | |
| II b | 34 (11.1) | |
| III | 31 (10.2) | |
| IV | 47 (15.4) | |
| Follow-up information | Available | 247 (80.7) |
| Not available | 59 (19.3) | |
| Follow-up months, median (range) | 68 (1–218) | |
| Disease-free survival (DFS) (%) | 170 (68.8) | |
| Alive with disease (AWD) (%) | 27 (10.9) | |
| Died of disease (tumor) (DOD) (%)a | 38 (15.4) | |
| Died of unknown cause (DUC) (%) | 10 (4.0) | |
| Survival with unknown status (%)b | 2 (0.8) | |
| Clinicopathological features of tumors | Number = 314 | |
| Primary tumor location (%) n = 304 | Pancreatic head | 127 (41.8) |
| Pancreatic body or tail | 165 (54.3) | |
| Non-pancreas | 12 (3.9) | |
| Median tumor size (range) (cm) n = 302 | 2.5 (0.7–17) | |
| Ki-67 (%) n = 235 | ≤2% | 171 (72.8) |
| >2% | 64 (27.2) |
aOne patient died of disease (tumor) but the survival time was unknown.
bTwo patients were alive but their disease status was unknown.