Table 2.
Clinicopathological parameters of 519 breast cancer patients in the high and low risk groups in the training cohort.
| Characteristics | Riskscore | |
|---|---|---|
| High-risk group | Low-risk group | |
| Age | ||
| ≤60 years | 139 | 147 |
| >60 years | 120 | 112 |
| Stage | ||
| I | 36 | 62 |
| II | 162 | 140 |
| III | 51 | 48 |
| IV | 8 | 3 |
| Unknown | 2 | 6 |
| Pathologic T stage | ||
| T1 | 59 | 86 |
| T2 | 159 | 141 |
| T3 | 29 | 28 |
| T4 | 12 | 4 |
| Pathologic N stage | ||
| N0 | 123 | 127 |
| N1 | 97 | 87 |
| N2 | 22 | 24 |
| N3 | 14 | 17 |
| Unknown | 3 | 4 |
| Pathologic M stage | ||
| M0 | 210 | 208 |
| M1 | 8 | 4 |
| Unknown | 41 | 47 |
| Estrogen receptor | ||
| Negative | 74 | 40 |
| Positive | 173 | 206 |
| Unknown | 12 | 13 |
| Progesterone receptor | ||
| Negative | 107 | 62 |
| Positive | 141 | 184 |
| Unknown | 11 | 13 |
| HER2 | ||
| Negative | 118 | 139 |
| Positive | 58 | 23 |
| Unknown | 83 | 97 |