Table 1.
Characteristics of participants in the TNBC cohort of the Shanghai Breast Cancer Survival Study
| Characteristics | Number | 5-yr DFS | 5-yr OS |
|---|---|---|---|
| No. of cases | 456 | 80.02% | 81.31% |
| Age at diagnosis, median (range) | 51.6 (26.1–74.3) | ||
| TNM stage | |||
| I | 137 | 88.92% | 89.05% |
| IIA | 164 | 83.26% | 84.05% |
| IIB | 95 | 74.50% | 73.68% |
| III – IV | 47 | 54.67% | 63.69% |
| Unknown | 13 | 76.92% | 84.62% |
| Grade | |||
| 1 | 51 | 88.00% | 94.12% |
| 2 | 140 | 79.82% | 82.01% |
| 3 | 263 | 78.80% | 78.70% |
| Unknown | 2 | 50% | 50% |
| Chemotherapy | |||
| Yes | 430 | 80.72% | 82.28% |
| No | 26 | 68.11% | 65.38% |
| Radiotherapy | |||
| Yes | 126 | 66.14% | 68.76% |
| No | 330 | 85.29% | 86.06% |
| Sample collection before chemo | |||
| Yes | 403 | 83.42% | 84.36% |
| No | 33 | 56.30% | 59.38% |
| Unknown | 20 | 50.00% | 55.00% |
| Basal-like | |||
| Yes | 189 | 71.61% | 73.94% |
| No | 242 | 87.46% | 88.01% |
| Unknown | 25 | 71.15% | 72.00% |
| No. of deaths | 112 | ||
| No. of recurrence/breast cancer deaths | 97 | ||