Table 4.
Univariate Cox regression analyses for RFS and OS of BLBC
| Variables | OS | RFS | |||||
|---|---|---|---|---|---|---|---|
| HR | 95%CI | P | HR | 95%CI | P | ||
| Age (<50 vs.≥50) | 1.937 | 0.277-0.973 | 0.038 | 1.472 | 0.401-1.149 | 0.150 | |
| Tumor size, cm (≤2 vs. >2) | 4.999 | 1.782-14.023 | 0.002 | 4.314 | 2.055-9.054 | <0.001 | |
| Histological Grade (II vs. III) | 1.105 | 0.599-2.040 | 0.749 | 1.235 | 0.753-2.026 | 0.402 | |
| Lymph node stage (N0 vs. N1-3) | 1.932 | 1.490-2.504 | <0.001 | 1.929 | 1.573-2.366 | <0.001 | |
| Radiotherapy (no vs. yes) | 3.606 | 2.043-6.364 | <0.001 | 5.755 | 3.217-10.294 | 0.000 | |
| CD68+ in TS (low vs. high) | 2.985 | 1.381-6.449 | 0.005 | 2.229 | 1.269-3.914 | 0.005 | |
| CD163+ in TS (low vs. high) | 3.548 | 1.697-7.417 | <0.001 | 3.975 | 2.200-7.180 | <0.001 | |
| CD68+ in TN (low vs. high) | 0.951 | 0.519-1.742 | 0.870 | 0.925 | 0.571-1.500 | 0.753 | |
| CD163+ in TN (low vs. high) | 1.322 | 0.717-2.436 | 0.371 | 1.496 | 0.916-2.445 | 0.108 | |
BLBC, basal-like breast cancer; TS, tumor stroma; TN, tumor nest; OS: overall survival; RFS: recurrence-free survival; HR: hazard ratio; CI: confidence interval.