Table 2.
Prognostic factors and overall survival rate (univariate analysis by Kaplan-Meier).
| 5-year OS% ± SE | P value | |
|---|---|---|
| Age | ||
| ≤50 | 84 ± 4 | 0.6 |
| >50 | 82 ± 2 | |
| Histologic grade | ||
| G1 | 90 ± 5 | |
| G2 | 89 ± 3 | 0.001 |
| G3 | 73 ± 4 | |
| N stage | ||
| N0 | 94 ± 2 | |
| N1 | 86 ± 4 | <0.0001 |
| N2 | 53 ± 10 | |
| N3 | 46 ± 12 | |
| T stage | ||
| T1 | 92 ± 2 | |
| T2 | 84 ± 36 | <0.0001 |
| T3 | 43 ± 13 | |
| T4 | 36 ± 12 | |
| ER | ||
| Yes | 89 ± 2 | <0.0001 |
| No | 62 ± 6 | |
| ECE | ||
| Yes | 93 ± 20 | <0.0001 |
| No | 63 ± 6 | |
| LN CSCA (mm2) | ||
| 0 (N0) | 94 ± 22 | |
| <50 | 85 ± 54 | <0.0001 |
| 50–500 | 65 ± 7 | |
| >500 | 46 ± 13 | |
| LNR | ||
| 0 (N0) | 94 ± 22 | |
| <0.1 | 90 ± 4 | <0.0001 |
| 0.1–0.65 | 79 ± 5 | |
| >0.65 | 28 ± 10 |