Table 2.

Hazard Ratios for Breast Cancer Specific Mortality, Stratified by Race and Menopausal Status and Adjusted for Age at Diagnosis and Date of Diagnosis

	White		African American
	Premenopausal (n=323)	Postmenopausal (n=308)	Premenopausal (n=238)	Postmenopausal (n=280)
Subtype
Luminal A	1.00	1.00	1.00	1.00
Luminal B	1.2 (0.6, 2.5)	2.9 (1.0, 8.4)	1.2 (0.5, 2.9)	1.3 (0.5, 3.6)
Basal-like	1.8 (1.0, 3.4)	3.9 (1.5, 10.0)	1.3 (0.8, 2.3)	1.9 (0.9, 3.8)
HER2+/ER−	2.1 (0.9, 5.0)	4.3 (1.4, 13.6)	1.9 (0.9, 4.2)	3.1 (1.3, 7.2)
Unclassified	1.4 (0.7, 3.0)	2.1 (0.6, 7.4)	1.0 (0.5, 2.0)	1.9 (0.8, 4.3)
Subtype combined
Luminal A or B	1.00	1.00	1.00	1.00
Basal-like	1.8 (1.0, 3.2)	3.0 (1.2, 7.4)	1.3 (0.8, 2.2)	1.8 (0.9, 3.6)
HER2+/ER−	2.0 (0.9, 4.8)	3.4 (1.1, 10.3)	1.9 (0.9, 4.0)	3.0 (1.3, 6.9)
ER status
ER+	1.00	1.00	1.00	1.00
ER−	1.4 (0.9, 2.2)	2.1 (1.0, 4.2)	1.3 (0.8, 2.2)	2.3 (1.3, 3.9)
PR status
PR+	1.00	1.00	1.00	1.00
PR−	1.9 (1.2, 3.0)	2.1 (1.0, 4.2)	1.4 (0.9, 2.3)	1.9 (1.1, 3.4)
HER2 status
HER2−	1.00	1.00	1.00	1.00
HER2+	1.2 (0.7, 2.1)	2.3 (1.1, 5.1)	1.4 (0.8, 2.5)	1.5 (0.8, 2.9)