Table 2.
Correlations between high- or low-stroma group and various prognostic markers of invasive breast cancer
| High-stroma (n = 57) | Low-stroma (n = 69) | P value | ||
| ER | Positive | 51 | 56 | 0.22 |
| Negative | 6 | 13 | ||
| PgR | Positive | 45 | 52 | 0.676 |
| Negative | 12 | 17 | ||
| HER2 | Positive | 7 | 8 | 1 |
| Negative | 50 | 61 | ||
| Progression marker (Ki67) | 10% (median) | 15% (median) | 0.098 | |
| Nuclear grade | 1 | 33 | 37 | 0.541 |
| 2 | 13 | 13 | ||
| 3 | 11 | 19 | ||
| Histological grade | 1 | 15 | 17 | 0.484 |
| 2 | 35 | 38 | ||
| 3 | 7 | 14 | ||
| Intrinsic subtype | Luminal A | 38 | 34 | 0.101 |
| Luminal B | 13 | 22 | ||
| HER2-positive | 3 | 2 | ||
| TN | 3 | 11 | ||
| Lymph node metastasis | positive | 13 | 11 | 0.328 |
| negative | 44 | 58 | ||
ER, estrogen-receptor; TN, Triple Negative.