Table 3.

Univariable and multivariable analyses luminal B BC with MPE at different age for overall survival

Variables	age < 50 years		P	age > 50 years		P
	HR	CI 95%)		HR	CI (95%)
Univariable analyses
Clinical stages at initial diagnosis			0.013			0.151
Stage I	0.103	0.018–0.602		0.395	0.064–2.417
Stage II	0.331	0.102–1.075		0.294	0.066–1.321
Stage III	1.139	0.391–3.320		1.359	0.395–4.678
Unknown	REF	REF		REF	REF
Her2 expression	2.781	0.915–8.449	0.071	0.818	0.269–2.487	0.723
Neoadjuvant	0.954	0.422–2.156	0.909	3.755	0.724–19.483	0.115
Surgical approach	2.459	0.915–6.605	0.074	0.152	0.016–1.466	0.103
Adjuvant Chemotherapy	0.166	0.057–0.486	0.001	3.975	0.514–30.740	0.186
Adjuvant Endocrine therapy	1.019	0.461–2.252	0.963	1.145	0.462–2.838	0.770
Adjuvant Radiotherapy	0.563	0.270–1.174	0.126	0.972	0.384–2.460	0.952
Multivariable analysis
Clinical stages at initial diagnosis			0.026
Stage I	0.173	0.027–1.112		-	-
Stage II	0.574	0.153–2.151		-	-
Stage III	1.887	0.600-5.935		-	-
Unknown	REF	REF		-	-