Table 3.
Pathological outcomes
| Nivo + chemo | Chemo | ||
|---|---|---|---|
| outcomes | (n = 55) | (n = 30) | p |
| R0 resection (%) a | 53 (96.4) | 29 (96.6) | 1 |
| Tumor regression grade a | |||
| 1 (Residual tumor 0) | 11 (20) | 6 (20) | 0.688 |
| 2 (Residual tumor 1–10%) | 9 (16.4) | 5 (16.7) | |
| 3 (Residual tumor 11–50%) | 12 (21.8) | 4 (13.3) | |
| 4 (Residual tumor > 50%) | 23 (41.8) | 15 (50) | |
| Lymph nodes involved b | |||
| ypN0 | 38 (69.1) | 13 (43.3) | 0.021* |
| ypN+ | 17 (30.9) | 17 (56.7) | |
| ypTNM stage b | |||
| I | 27 (49.1) | 11 (36.7) | 0.088 |
| II | 11 (20) | 2 (6.7) | |
| III | 15 (27.3) | 14 (46.6) | |
| IV | 2 (3.6) | 3 (10) |
a. Chi-square test
b. Fisher exact probability test