Research Article
Survival Outcome and Impact of Chemotherapy in T1 Node-Negative Triple-Negative Breast Cancer: A SEER Database Analysis
Table 2
T1 tumor survival outcomes of patients following chemotherapy treatment.
| Outcome | Chemotherapy | No chemotherapy or unknown | | 5-year estimate (%) | 95% CI | Total no. of events | 5-year estimate (%) | 95% CI | Total no. of events |
| T1a | | | | | | | | OS | 97.8 | 93.5–100.0 | 1 | 91.1 | 86.8–95.4 | 16 | 0.039 | BCSS | 97.8 | 93.5–100.0 | 1 | 97.2 | 94.7–99.7 | 5 | 0.388 | T1b | | | | | | | | OS | 91.9 | 88.2–95.6 | 20 | 88.6 | 84.7–92.5 | 32 | 0.195 | BCSS | 94.1 | 90.8–97.4 | 14 | 94.0 | 91.1–96.9 | 16 | 0.399 | T1c | | | | | | | | OS | 91.4 | 89.4–93.4 | 73 | 75.5 | 72.0–79.0 | 166 | <0.001 | BCSS | 94.5 | 92.9–96.1 | 47 | 89.9 | 87.4–92.4 | 64 | 0.004 |
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Abbreviations: OS, overall survival; BCSS, breast cancer-specific survival; CI, confidence interval.
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