Characterizing inflammatory breast cancer among Arab Americans in the California, Detroit and New Jersey Surveillance, Epidemiology and End Results (SEER) registries (1988–2008)

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Table 3 Odds ratios (95% CI) for IBC by race

Race	Crude Model	Age-Adjusted	HLM^a
Non-Hispanic White	1.0 (ref)	1.0 (ref)	1.0 (ref)
Non-Hispanic Black	1.8 (1.7, 2.0)	1.7 (1.6, 1.8)	1.3 (1.2, 1.4)
Hispanic	1.7 (1.6, 1.8)	1.5 (1.4, 1.6)	1.2 (1.1, 1.3)
Arab-American	1.4 (1.1, 1.8)	1.3 (1.1, 1.6)	1.5 (1.2, 1.9)
Asian	0.9 (0.8, 0.9)	0.8 (0.7, 0.8)	0.6 (0.6, 0.7)
American Indian/Alaskan	2.2 (1.4, 3.5)	2.0 (1.2, 3.2)	1.9 (1.1, 3.4)
Other	0.9 (0.3, 2.3)	0.8 (0.3, 2.0)	1.1 (0.3, 3.8)
Unknown	0.6 (0.4, 0.9)	0.6 (0.4, 0.9)	0.9 (0.6, 1.3)

^a=Hierarchical logistic regression model adjusted for age, ER, PR, Her2, registry and census tract-level education and included interaction term between race and ER.