Table 5.
Comparison of DFS and OS using the 8th edition of AJCC anatomic and prognostic staging system of luminal A breast cancer (N = 7458)
| Stage | Anatomic stage groups | Prognostic stage groups | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| n | 5-year DFS (%)* | p** | 5-year OS (%)* | p** | n | 5-year DFS (%)* | p** | 5-year OS (%)* | p** | |
| < 0.001 | < 0.001 | < 0.001 | < 0.001 | |||||||
| I | 2974 | 94.0 | 97.0 | 2464 | 94.1 | 97.5 | ||||
| II | 3388 | 86.4 | 91.8 | 2072 | 91.2 | 95.4 | ||||
| III | 1096 | 68.1 | 78.9 | 2425 | 75.9 | 83.2 | ||||
DFS disease-free survival, OS overall survival
*DFS and OS are analyzed by Kaplan–Meier survival analysis
**Log-rank test