Table 4.
Pathologic diagnosis in patients who underwent pancreaticoduodenectomy at UCSF-affiliated hospitals, 1989–2003.
| Characteristics | ML | LVHG | value† |
| Tumor diameter, mean (SD), cm | 3.0 (1.5) | 2.9 (1.7) | 1.000 |
| Tumor differentiation, no. (%)‡ | — | — | .575 |
| Low | 36 (39.1) | 7 (30.4) | — |
| Moderate | 46 (50) | 12 (52.2) | — |
| High | 10 (10.9) | 4 (17.4) | — |
| Positive tumor margins, no. (%) | 25 (26.9) | 6 (25) | 1.000 |
| Positive vascular invasion, no. (%) | 28 (31.1) | 7 (58.3) | .102 |
| Positive neural invasion, no. (%) | 54 (60) | 14 (87.5) | .047 |
†According to the Kruskal-Wallis test for continuous data or Fisher's exact test for categorical data.
‡Numbers may not sum to group total because data was not available for all patients.