Postmastectomy Radiotherapy for Locally Advanced Breast Cancer Receiving Neoadjuvant Chemotherapy

Table 4

Multivariate analysis of distant metastases occurrence and overall survival.

Factor	Hazard ratio	95% confidence interval	𝑃 value
Distant metastases
pN2	6.95	2.11–22.56	0.007
pN3	7.21	2.15–24.18	0.009
Extracapsular extension	1.91	1.25–2.92	0.023
Overall survival
pN2	5.00	1.51–16.52	0.035
pN3	4.50	1.31–15.48	0.037
Extracapsular extension	2.18	1.37–3.46	0.009
Estrogen receptor positive disease	0.57	0.36–0.90	0.003