S2.
Comparison of pathological and clinical features between triple-negative and non-triple-negative breast cancer cases
| Factors | Triple-negative (%)27 | Non-triple-negative (%) 73 | χ2 | P |
| P < 0.05; ** P < 0.01; *** P < 0.001 | ||||
| Age (years) | ||||
| < 40 | 9 (33.3) | 10 (13.7) | 4.937 | 0.026* |
| ≥ 40 | 18 (66.7) | 63 (86.3) | ||
| Tumor size (diameter) | ||||
| d﹤2 cm | 6 (21.7) | 20 (27.4) | 0.415 | 0.831 |
| 2 ≤ d﹤5 cm | 19 (70.9) | 49 (66.8) | ||
| d ≥ 5 | 2(7.4) | 4 (5.8) | ||
| Grade | ||||
| I and II | 15 (56.5) | 54 (73.9) | 2.545 | 0.111 |
| III | 12 (43.5) | 19 (26.1) | ||
| Axillary node status | ||||
| Negative | 17 (63.0) | 38(52.1) | 0.948 | 0.333 |
| Positive | 10 (37.0) | 35 (47.9) | ||
| TNM stage | ||||
| I - II | 23 (85.2) | 63 (86.3) | 0.510 | 0.082 |
| III - IV | 4 (14.8) | 10 (13.7) | ||
| VM | ||||
| Negative | 9 (33.3) | 62 (84.9) | 5.270 | 0.020* |
| Positive | 18 (66.7) | 11 (15.1) | ||
| ALDH1 | ||||
| Negative | 16 (59.3) | 60 (82.2) | 6.381 | 0.012** |
| Positive | 11 (40.7) | 13 (17.8) | ||
| CD133 | ||||
| Negative | 17 (62.9) | 57 (78.1) | 3.459 | 0.043* |
| Positive | 12 (37.1) | 16 (21.9) | ||
| CD44+\CD24- | ||||
| Negative | 18 (66.7) | 59 (80.8) | 2.652 | 0.090 |
| Positive | 9 (33.3) | 14 (19.2) | ||
| VE-cadherin | ||||
| Negative | 9 (33.3) | 35 (48.5) | 1.988 | 0.159 |
| Positive | 18 (66.7) | 38 (51.5) | ||