Table 5.
Multivariate prognostic analyses of chemotherapy receipt on breast cancer-specific mortality using the Cox regression model and the competing-risks model in intermediate and high-risk RS cohorts (2004–2012 SEER database).
| Variables | Cox regression model |
Competing-risks model |
||||
|---|---|---|---|---|---|---|
| HR | 95%CI | P | sdHR | 95%CI | P | |
| Intermediate-risk RS (n = 5059) | ||||||
| No chemotherapy | 1 | 1 | ||||
| Chemotherapy | 1.026 | 0.687–1.532 | 0.900 | 1.449 | 0.681–3.080 | 0.335 |
| High-risk RS (n = 1478) | ||||||
| No chemotherapy | 1 | 1 | ||||
| Chemotherapy | 0.762 | 0.558–1.051 | 0.099 | 1.039 | 0.668–1.618 | 0.864 |
CI, confidence interval; HR, hazard ratio; RS, recurrence score; sdHR, sub-distribution hazard ratio.