Table 1.
Clinicopathological Characteristics of the Study Group
| Variable | Number of cases | % |
|---|---|---|
| Age | ||
| <50 years | 28 | 26.2 |
| ≥50 years | 79 | 73.8 |
| Tumor stage | ||
| T1 | 47 | 43.9 |
| T2 | 54 | 50.5 |
| T3 | 3 | 2.8 |
| T4 | 2 | 1.9 |
| Missing data | 1 | 0.9 |
| Tumor grade | ||
| G1 | 14 | 13.1 |
| G2 | 53 | 49.5 |
| G3 | 40 | 37.4 |
| Missing data | 0 | 0.0 |
| N stage | ||
| N− | 51 | 47.7 |
| N+ | 56 | 52.3 |
| Missing data | 0 | 0.0 |
| ER status | ||
| Positive | 25 | 23.4 |
| Negative | 82 | 76.6 |
| Missing data | 0 | 0.0 |
| PR status | ||
| Positive | 29 | 27.1 |
| Negative | 78 | 72.9 |
| Missing data | 0 | 0.0 |
| HER2 status | ||
| Positive | 76 | 71.0 |
| Negative | 29 | 27.1 |
| Missing data | 2 | 1.9 |