Table II.
Tumor characteristics, operative factors and complications according to age group.
| Parameter | Patients aged <80 years (n=351) | Patients aged ≥80 years (n=44) | P-value |
|---|---|---|---|
| Maximum tumor size (cm) | 4.7±4.4 | 6.4±7.5 | 0.02 |
| Tumor number (single/multiple) | 227/124 | 28/16 | 0.89 |
| Operative method (anatomic/limited) | 160/191 | 19/25 | 0.76 |
| Operation time (min) | 368±136 | 333±124 | 0.16 |
| Intraoperative bleeding (ml) | 1,061±961 | 1,011±906 | 0.68 |
| Allogeneic transfusion, n (%) | 78 (22) | 11 (25) | 0.67 |
| Differentiation (poor), n (%) | 15 (4) | 2 (5) | 0.93 |
| Portal vein tumor thrombosis, n (%) | 188 (54) | 30 (68) | 0.06 |
| Background liver condition (cirrhosis), n (%) | 106 (30) | 3 (6) | <0.01 |
| Tumor stage (I, II/III, IV) | 189/162 | 14/30 | <0.01 |
| PHLF, n (%) | 40 (11) | 5 (11) | 0.99 |
| Bile leakage, n (%) | 10 (3) | 1 (2) | 0.82 |
| Complications, other (≥Clavien II), n (%) | 75 (27) | 12 (27) | 0.37 |
| Mortality, n (%) | 15 (4) | 1 (2) | 0.51 |
| Delirium, n (%) | 51 (15) | 33 (75) | <0.01 |
PHLF, post-hepatectomy liver failure. Data are expressed as the mean ±standard deviation.