TABLE 2.
Comparison of treatment among rapid relapse versus no rapid relapse triple-negative breast cancers
| Variable | Total N (%) |
Rapid relapse N (%) |
No rapid relapse N (%) |
Chi-squared p value |
|---|---|---|---|---|
|
| ||||
| Surgery | < 0.001 | |||
| No surgery | 743 (4.3) | 198 (14.4) | 545 (3.4) | |
| BCS | 7924 (45.7) | 299 (21.8) | 7625 (47.8) | |
| Mastectomy | 8670 (50.0) | 874 (63.8) | 7796 (48.8) | |
| Axillary surgery | < 0.001 | |||
| No breast or axillary surgery | 573 (3.3) | 158 (11.7) | 415 (2.6) | |
| Breast surgery but no axillary surgery | 797 (4.6) | 83 (6.2) | 714 (4.5) | |
| Breast surgery and sentinel lymph node biopsy (1–9 nodes removed) | 11,512 (66.9) | 496 (36.8) | 11,016 (69.5) | |
| Breast surgery and axillary lymph node dissection (≥ 10 nodes removed) | 4316 (25.1) | 610 (45.3) | 3706 (23.4) | |
| Radiation | < 0.001 | |||
| No/unknown | 8750 (50.4) | 776 (56.3) | 7974 (49.9) | |
| Yes with BCS | 5839 (33.6) | 165 (12.0) | 5674 (35.5) | |
| Yes with mastectomy | 2780 (16.0) | 437 (31.7) | 2343 (14.7) | |
| Chemotherapy | 0.26 | |||
| No/unknown | 2795 (16.1) | 207 (15.0) | 2588 (16.2) | |
| Yes | 14,574 (83.9) | 1171 (85.0) | 13,403 (83.8) | |