The effect of postmastectomy radiotherapy in node-positive triple-negative breast cancer

BMC Cancer

Table 3 Multivariate Cox proportional hazard analysis evaluating the effect of PMRT stratified by staging subgroups

Staging subgroups (non-PMRT vs. PMRT)	3-year BCSS
Staging subgroups (non-PMRT vs. PMRT)	OR	95% CI (OR)	P^a value
Overall stage	0.720	0.642–0.808	< 0.001
T1–2N1	0.861	0.689–1.078	0.191
T3–4N1	0.765	0.591–0.991	0.042
T1-4N2	0.622	0.501–0.774	< 0.001
T1-4N3	0.630	0.505–0.787	< 0.001

OR odds ratio; 2. CI confidence interval; 3. P^a value was adjusted by a multivariate Cox proportional hazard regression model including age, ethnicity, pathological T and N stage, and radiotherapy

ISSN: 1471-2407