Table 3.

Multivariate Cox regression analyses for DFS, OS, and PRS

Disease-free survival HR (95% CI); POverall survival HR (95% CI); PPostrelapse survival HR (95% CI); P
Private insurance0.87 (0.65–1.16); 0.3320.53 (0.28–1.01); 0.0520.55 (0.41–0.75); <0.001
Age (y scaled by 0.1)0.94 (0.86–1.03); 0.1851.14 (0.97–1.34); 0.1161.08 (0.99–1.17); 0.080
Race: black or mixed0.82 (0.65–1.04); 0.1040.92 (0.61–1.39); 0.6990.88 (0.70–1.10); 0.253
Hormone receptor positivity0.42 (0.34–0.53); <0.0010.21 (0.13–0.33); <0.0010.63 (0.50–0.78); <0.001
T-stage IV at diagnosis2.46 (1.88–3.21); <0.0013.04 (1.96–4.72); <0.001NA
N-stage 0 at diagnosis0.45 (0.35–0.58); <0.0010.29 (0.17–0.48); <0.001NA
Locoregional recurrenceNANA0.74 (0.58–0.94); 0.014

Abbreviation: NA, not applicable to the specified analysis.