Table 2 Patient Characteristics
Characteristic | LSBI group (N = 185) | ESBI group (N = 284) | P |
|---|---|---|---|
Sex | |||
Male | 113 (61.1) | 209 (73.6) | 0.004 |
Female | 72 (38.9) | 75 (26.4) | |
Age (year) | |||
< 48 | 99 (53.5) | 127 (44.7) | 0.062 |
≥ 48 | 86 (46.5) | 157 (55.3) | |
Pathology classification | |||
Keratinizing | 2 (1.1) | 2 (0.7) | 0.664 |
Non-keratinizing | 183 (98.9) | 282 (99.3) | |
T classification | |||
T3 | 174 (94.1) | 83 (29.2) | < 0.001 |
T4 | 11 (5.9) | 201 (70.8) | |
N classification | |||
N0 | 26 (14.1) | 29 (10.2) | 0.329 |
N1 | 74 (40.0) | 136 (47.9) | |
N2 | 61 (33.0) | 87 (30.6) | |
N3 | 24 (13.0) | 32 (11.3) | |
Overall stage | |||
III | 152 (82.2) | 73 (25.7) | < 0.001 |
IVA | 33 (17.8) | 211 (74.3) | |
Concurrent chemotherapy | |||
Yes | 176 (95.1) | 270 (95.1) | 0.975 |
No | 9 (4.9) | 14 (4.9) | |