Table I.
Clinicopathological characteristics of patients with luminal B breast cancer, including expression of CD8+ TIL.
| Clinicopathological characteristic | Value (%) |
|---|---|
| Age, years | |
| Mean ± standard deviation | 50.58±1.58 |
| >50 | 13 (42) |
| ≤50 | 18 (58) |
| Histological type | |
| Infiltrating ductal | 26 (83.9) |
| Lobular | 5 (16.1) |
| Tumor grade at initial biopsy | |
| Grade II | 16 (51.6) |
| Grade III | 15 (48.4) |
| Lymphovascular invasion | |
| Present | 9 (29) |
| Absent | 22 (71) |
| Disease stage | |
| Stage II | 12 (27.5) |
| Stage III | 19 (72.5) |
| pCR | |
| Present | 11 (35.5) |
| Absent | 20 (64.5) |
| Peritumoral CD8+TIL | |
| High | 20 (64.5) |
| Low | 11 (35.5) |
| Intratumoral CD8+TIL | |
| High | 16 (58.1) |
| Low | 15 (41.9) |
pCR, pathological complete response; CD8, cluster of differentiation 8; TIL, tumor-infiltrating lymphocytes.