Multivariate Cox proportional hazard analysis for DFS and OS of patients with non-metastatic invasive breast cancer

Hazard RatioP95.0% CI for HR (range)Hazard RatioP95.0% CI for HR (range)
 TNM stageb2.1800.0091.219–3.8983.9370.0061.494–10.371
Model before stepwise selection
 T statusb2.6130.0101.255–5.4393.6790.0281.148–11.793
 N stageb1.2220.5120.671–2.2251.1250.8150.420–3.010
 Hormone Receptors0.2770.0040.277–0.6690.1680.0070.046–0.621
Model after stepwise selection
 T statusb2.9990.0011.602–5.6153.5220.0051.477–8.398
 Hormone Receptors0.2690.0020.116–0.6210.2310.0140.072–0.742

aAge under 50 and over 50 years old

bAll categorical covariates were transformed into numeric codes as follows : T status (T1; 1, T2; 2, T3; 3), N stage (N0; 0, N1; 1, N2; 2, N3; 3), Grade (G1; 1, G2; 2, G3; 3), Signatures (FCIS; 1, Rest; 2, UCIS; 3) TNM stage (I; 1, II; 2, III; 3)