Table 2. Number of events among the 248 enrolled patients according to HER2 status and pathologic TNM stage.
| Pathologic TNM stage, % (number of events/n) | HER2 status | Total (n = 248) | ||
|---|---|---|---|---|
| Heterogeneity (n = 25) |
Homogeneity (n = 11) |
Negative (n = 212) |
||
| I | 40.0 (2/5) | 0 (0/0) | 6.7 (4/60) | 9.2 (6/65) |
| II | 25.0 (1/4) | 0 (0/2) | 19.4 (7/36) | 19.0 (8/42) |
| III | 36.4 (4/11) | 66.7 (2/3) | 63.0 (29/46) | 58.3 (35/60) |
| IV | 100 (5/5) | 100 (6/6) | 91.4 (64/70) | 92.6 (75/81) |
| Total | 48.0 (12/25) | 72.7 (8/11) | 49.1 (104/212) | 50.0 (124/248) |
Abbreviation: HER2, human epidermal growth factor receptor 2.