Table 1.
Baseline characteristics of the 1888 patients with de novo stage IV triple-negative breast cancer.
| Features | Level | Number (%) |
|---|---|---|
| Age (years) | <65 | 1150 (60.91) |
| ≥65 | 738 (39.09) | |
| Race | White | 1285 (68.06) |
| Black | 481 (25.48) | |
| Others | 122 (6.46) | |
| Grade | G1/G2 | 287 (15.20) |
| G3/G4 | 1305 (69.12) | |
| Unknown | 296 (15.68) | |
| Tumor size (cm) | ≤2 | 267 (14.14) |
| 2–5 | 625 (33.10) | |
| >5 | 683 (36.17) | |
| Unknown | 313 (16.59) | |
| Node stage | Node negative | 442 (23.41) |
| Node positive | 1311 (69.44) | |
| Unknown | 135 (7.15) | |
| Surgery of the primary tumor | Yes | 681 (36.07) |
| No | 1207 (63.93) | |
| Chemotherapy | Yes | 1357 (71.88) |
| No/unknown | 531 (28.12) | |
| Insurance | Yes | 1783 (94.44) |
| No | 86 (4.56) | |
| Unknown | 19 (1.00) | |
| Marital status | Married | 804 (42.59) |
| Unmarried | 995 (52.70) | |
| Unknown | 89 (4.71) |