Table 2.

Hazard ratios and model coefficients for prognostic factors included in the models (n=1114).

Prognostic factors	β	Standard error	Hazard ratio (95% CI)	P value
Age at diagnosis	0.031	0.01	1.031 (1.011-1.051)	.002
Clinical stage	1.113	0.133	3.044 (2.347-3.928)	<.001
Molecular classification	0.016	0.145	1.017 (0.765-1.351)	.91
Operative type	0.127	0.52	1.136 (0.410-3.145)	.81
Breast reconstruction	–0.318	0.343	0.728 (0.372-1.426)	.36
Axillary lymph node dissection	0.42	0.422	1.521 (0.665-3.478)	.32
Chemotherapy	–0.067	0.34	0.935 (0.480-1.821)	.84
Endocrine therapy	–0.524	0.222	0.592 (0.384-0.914)	.02