Table 1.
Characteristics of the study population.
| All 106 | TC 75 (70.8%) | AC 31 (29.2%) | P value (TC vs AC) | |
|---|---|---|---|---|
| Sex (male) | 45 (42.5%) | 30 (40%) | 15 (48.4%) | P = 0.5628 |
| Age (years) | 55.1 ± 14.9 | 53.3 ± 14.9 | 59.4 ± 14.1 | P = 0.0596 |
| Size (cm) | 2.6 ± 1.4 | 2.3 ± 1.4 | 3.2 ± 1.4 | P = 0.0008 |
| Central Location (%) | 55 (51.9%) | 41 (54.7%) | 14 (45.2%) | P = 0.4982 |
| Mitosis upon 10 HPF | 1.4 ± 1.8 | 0.6 ± 0.9 | 3.4 ± 2.0 | P < 0.0001 |
| Presence of necrosis (%) | 18 (17.0%) | 0 | 18 (58.1%) | P < 0.0001 |
| Nodal metastasis (%) | 21 (19.8%) | 12 (16.0%) | 9 (29.0%) | P = 0.0264 |
| pN1 (%) | 14 (13.2%) | 9 (12.0%) | 5 (16.1%) | P = 0.0490 |
| pN2 (%) | 7 (6.6%) | 3 (4.0%) | 4 (12.9%) | P = 0.0425 |
| Ki-67 (%) | 5.0 ± 10.0 | 2.9 ± 3.2 | 9.5 ± 16.6 | P = 0.0200 |
| Recurrence (%) | 29 (27.4%) | 14 (18.7%) | 15 (48.4%) | P = 0.0039 |
| DFS (years) | 7.3 ± 5.2 | 8.5 ± 5.1 | 4.2 ± 4.2 | P < 0.0001 |
| Death (%) | 22 (20.8%) | 9 (12.0%) | 13 (41.9%) | P = 0.0014 |
| Tumor related death (%) | 11 (10.4%) | 0 | 11 (35.5%) | P < 0.0001 |
| OS (years) | 8.3 ± 5.2 | 9.4 ± 5.1 | 5.8 ± 4.6 | P = 0.0013 |