Table 2. Unadjusted odds ratios and CIs for interaction terms for preventable lupus hospitalizations ^a.

Variables	Unadjusted model
Race/ethnicity*age group (interaction)
Minorities*0-19 years	Ref
Minorities*20-39 years	1.816 (1.128, 2.922)a
Minorities*40-64 years	2.304 (1.441, 3.682)a
Minorities*≥65 years	2.807 (1.719, 4.583)a
Whites*0-19 years	Ref
Whites*20-39 years	1.507 (.649, 3.502)
Whites*40-64 years	1.946 (.850, 4.458)
Whites*≥65 years	1.690 (.736, 3.880)
Race/ethnicity*residence (interaction)
Minorities*urban	Ref
Minorities*rural	1.213 (1.002, 1.470)a
Whites*urban	Ref
Whites*rural	.975 (.816, 1.164)

a. Indicates significant at P<.15