Table 4.
Distribution of patients and survival according to each staging system in the primary cohort.
| Staging system | N (%) | Median survival time (months) | Deaths (%) | Survival rate (%) | |
|---|---|---|---|---|---|
|
| |||||
| 1-year | 3-year | ||||
| 6th pAJCC system | |||||
| I | 148 (40.0) | 34.0 | 87 (58.8) | 79.1 | 49.3 |
| II | 31 (8.4) | 15.8 | 24 (77.4) | 61.3 | 32.3 |
| III | 158 (42.7) | 9.3 | 142 (89.9) | 38.0 | 13.9 |
| IV | 33 (8.9) | 7.7 | 32 (97.0) | 30.3 | 3.0 |
| 7th pAJCC system | |||||
| I | 146 (39.5) | 35.9 | 85 (58.2) | 79.5 | 50.0 |
| II | 105 (28.4) | 12.5 | 89 (84.8) | 52.4 | 22.9 |
| III | 23 (6.2) | 9.8 | 19 (82.6) | 34.8 | 17.4 |
| IV | 96 (25.9) | 7.1 | 92 (95.8) | 28.1 | 5.2 |
| New staging system | |||||
| I | 68 (18.4) | 53.0 | 30 (44.1) | 97.1 | 70.6 |
| II | 93 (25.1) | 24.6 | 65 (69.9) | 69.9 | 37.6 |
| III | 152 (41.1) | 10.2 | 134 (88.2) | 42.1 | 14.5 |
| IV | 57 (15.4) | 5.7 | 56 (98.2) | 19.3 | 1.8 |
AJCC: American Joint Commission for Cancer Staging.