Table 1.
Clinicopathologic characteristics n (%)
| Variables | ≥70 years (n=60) | < 70 years (n=1782) | P value |
| 73.1 ± 3.9 | 55.8 ± 5.2 | 0.0007 | |
| Sex (male/female) | Sep-51 | 1453/329 | 0.61 |
| Tumor location | 0.74 | ||
| Cervical | 3 (5.0) | 75 (4.2) | |
| Upper-third | 7 (11.7) | 186 (10.4) | |
| Middle-third | 32 (53.3) | 901 (50.6) | |
| Lower-third | 16 (26.7) | 591 (33.2) | |
| Double location | 2 (3.3) | 29 (1.6) | |
| Tumor size (cm) | 5.2 ± 2.1 | 6.5 ± 2.7 | 0.85 |
| Histological type | 0.87 | ||
| Squamous cell carcinoma | 53 (88.3) | 1 610 (90.3) | |
| Adenocarcinoma | 4 (6.7) | 97 (5.4) | |
| Other carcinomas | 3 (5.0) | 75 (4.2) | |
| Histological differentiation | 0.76 | ||
| Well | 8 (13.3) | 185 (10.4) | |
| Moderately | 46 (76.7) | 1 410 (79.1) | |
| Poorly | 6 (10.0) | 187 (10.5) | |
| TNM stage | 0.89 | ||
| 0 | 1 (1.7) | 15 (0.8) | |
| I | 2 (3.3) | 94 (5.3) | |
| II | 9 (15.0) | 251 (14.1) | |
| III | 45 (75.0) | 1 308 (73.4) | |
| IV | 3 (5.0) | 114 (6.4) | |
| Preoperative radiochemotherapy | 19 (31.7) | 624 (35.0) | 0.68 |