Table 3. Multivariate analysis of factors affecting survival of 929breast cancer patients by Cox proportional hazard model.

Factor	P value	HR	95% CI
T stage	<0.001	1.811	1.441–2.276
Histologic stage	<0.001	3.235	2.173–4.817
LNR	<0.001	2.951	2.310–3.771

HR, hazard ratio, CI, confidence interval.