Table 2.

Cox proportional hazard ratios by inflammatory status and ER/PR states among breast cancer patients, SEER 18, 1990–2009

Strata	Race	No. of patients	No. of deaths	Adjusted HRa	95% Confidence intervals
1. Non-IBC
	NH White	24,926	11,510	1.00	Reference
	Black	5,288	2,716	1.21	1.16	1.27
	Hispanic White	3,309	1,313	0.97	0.92	1.03
	API	2,309	873	0.87	0.81	0.93
2.IBC
	NH White	5,332	2,623	1.00	Reference
	Black	1,160	684	1.32	1.21	1.44
	Hispanic White	874	404	0.99	0.89	1.11
	API	382	171	0.84	0.72	0.98
3.ER+/PR+
	NH White	16,371	6,638	1.00	Reference
	Black	2,575	1,193	1.32	1.24	1.41
	Hispanic White	2,075	717	0.98	0.91	1.06
	API	1,353	432	0.88	0.79	0.97
4. ER−/PR−
	NH White	8,491	4,757	1.00	Reference
	Black	2,714	1,591	1.17	1.11	1.24
	Hispanic White	1,390	688	0.97	0.90	1.06
	API	883	413	0.85	0.77	0.94
5. Non-IBC and ER+/PR+
	NH White	14,270	5,807	1.00	Reference
	Black	2,234	1,023	1.32	1.23	1.41
	Hispanic White	1,753	595	0.97	0.89	1.06
	API	1,213	372	0.84	0.76	0.94
6. IBC and ER+/PR+
	NH White	2,101	831	1.00	Reference
	Black	341	170	1.43	1.20	1.69
	Hispanic White	322	122	1.07	0.88	1.30
	API	140	60	1.24	0.95	1.61
7. Non-IBC and ER−/PR−
	NH White	6,207	3,445	1.00	Reference
	Black	2,105	1,197	1.14	1.07	1.23
	Hispanic White	1,001	481	0.98	0.89	1.08
	API	702	320	0.87	0.77	0.97
8. IBC and ER−/PR−
	NH White	2,284	1,312	1.00	Reference
	Black	609	394	1.30	1.16	1.47
	Hispanic White	389	207	0.96	0.83	1.12
	API	181	93	0.82	0.66	1.01

^aHR Hazard ratio, adjusted for: age at diagnosis, marital status, stage, grade, surgery, radiation, ER/PR status, and IBC status. The stratified variables were not included in stratified models.

IBC=Inflammatory breast cancer, NH=Non-Hispanic, API=Asian/Pacific Islander