Survival comparisons of substages according to the eighth edition
| Stage | OS (95%CI) | P | |
|---|---|---|---|
| IIB (T1-3N1) | T1N1 vs. T2N1 | 20.9 m (95%CI: 17.5–24.3 m) vs. 15.1 m (95%CI: 14.3–15.9 m) | 0.011 |
| T1N1 vs. T3N1 | 20.9 m (95%CI: 17.5–24.3 m) vs. 12.3 m (95%CI: 11.6–13.0 m) | < 0.001 | |
| T2N1 vs. T3N1 | 15.1 m (95%CI: 14.3–15.9 m) vs. 12.3 m (95%CI: 11.6–13.0 m) | < 0.001 | |
| III (T1-3N2) | T1N2 vs. T2N2 | 14.9 m (95%CI: 13.1–16.7 m) vs. 11.9 m (95%CI: 11.2–12.6 m) | 0.042 |
| T1N2 vs. T3N2 | 14.9 m (95%CI: 13.1–16.7 m) vs. 9.5 m (95%CI: 8.5–10.5 m) | < 0.001 | |
| T2N2 vs. T3N2 | 11.9 m (95%CI: 11.2–12.6 m) vs. 9.5 m (95%CI: 8.5–10.5 m) | < 0.001 | |
| III (T3N2, T4N1-2) | T3N2 vs. T4N0 | 9.5 m (95%CI: 8.5–10.5 m) vs. 9.1 m (95%CI: 8.6–9.6 m) | 0.122 |
| T3N2 vs. T4N1 | 9.5 m (95%CI: 8.5–10.5 m) vs. 5.9 m (95%CI: 5.0–6.8 m) | < 0.001 | |
| T3N2 vs. T4N2 | 9.5 m (95%CI: 8.5–10.5 m) vs. 5.8 m (95%CI: 5.0–6.6 m) | 0.001 | |
| T4N0 vs. T4N1 | 9.1 m (95%CI: 8.6–9.6 m) vs. 5.9 m (95%CI: 5.0–6.8 m) | 0.02 | |
| T4N0 vs. T4N2 | 9.1 m (95%CI: 8.6–9.6 m) vs. 5.8 m (95%CI: 5.0–6.6 m) | 0.036 | |
| – | T1N1 (IIB) vs. T2N0 (IB) | 20.9 m (95%CI: 17.5–24.3 m) vs. 18.5 m (95%CI: 16.8–20.2 m) | 0.525 |
| – | T2N2 (III) vs. T3N1 (IIB) | 11.9 m (95%CI: 11.2–12.6 m) vs. 12.3 m (95%CI: 11.6–13.0 m) | 0.897 |
| – | T1N2 (III) vs. T2N1 (IIB) | 14.9 m (95%CI: 13.1–16.7 m) vs. 15.1 m (95%CI: 14.3–15.9 m) | 0.481 |
| – | T1N2 (III) vs. T3N0 (IIA) | 14.9 m (95%CI: 13.1–16.7 m) vs. 15.5 m (95%CI: 14.6–16.4 m) | 0.210 |
| – | T2N1 (IIB) vs. T3N0 (IIA) | 15.1 m (95%CI: 14.3–15.9 m) vs. 15.5 m (95%CI: 14.6–16.4 m) | 0.445 |