Table 1B. Characteristics of N2 and N3 subgroup patients stratified by adjuvant chemotherapy.
| N2 (n = 407) | N3 (n = 140) | |||||
|---|---|---|---|---|---|---|
| non-AC group (%) (n = 269) | AC group (%) (n = 138) | P | non-AC group (%) (n = 72) | AC group (%) (n = 68) | P | |
| Age | 0.570 | 0.080 | ||||
| Median (yrs) | 46 | 47.5 | 46 | 51 | ||
| Range (yrs) | 11–75 | 15–70 | 7–74 | 16–68 | ||
| Sex | 0.386 | 0.106 | ||||
| Male | 204 (75.8) | 102 (73.9) | 50 (69.4) | 56 (82.4) | ||
| Female | 65 (24.2) | 36 (26.1) | 22 (30.6) | 12 (17.6) | ||
| KPS score | 0.554 | 1.000 | ||||
| 80–100 | 266 (98.9) | 138 (100.0) | 72 (100.0) | 68 (100.0) | ||
| 60–70 | 3 (1.1) | 0 (0.0) | 0 (0.0) | 0 (0.0) | ||
| T stage | 0.684 | 0.252 | ||||
| T1 | 57 (21.2) | 27 (19.6) | 22 (30.5) | 13 (19.1) | ||
| T2A/2B | 105 (39.0) | 58 (42.0) | 29 (40.3) | 33 (48.5) | ||
| T3 | 78 (29.0) | 33 (23.9) | 17 (23.6) | 14 (20.6) | ||
| T4 | 29 (10.8) | 20 (14.5) | 4 (5.6) | 8 (11.8) | ||
| AJCC stage | 0.334 | 1.000 | ||||
| III | 240 (89.2) | 118 (85.5) | 0 (0.0) | 0 (0.0) | ||
| IVa | 29 (10.8) | 20 (14.5) | 0 (0.0) | 0 (0.0) | ||
| IVb | 0 (0.0) | 0 (0.0) | 72 (100.0) | 68 (100.0) | ||
| RT dose | 0.848 | 0.280 | ||||
| Median (Gy) | 66 | 66 | 66 | 66 | ||
| Range (Gy) | 63.8–74.4 | 60–74.8 | 66–77.3 | 62.8–70.4 | ||