Table 3.

Associations of annual income and educational attainment with hospitalization risk in individuals with AF.

	Model 1		Model 2		Model 3
	HR (95% CI)	P-Value	HR (95% CI)	P-Value	HR (95% CI)	P-Value
Annual income
≥$100,000 (Referent)	–		–		–
$50,000–99,999	1.25 (0.66, 2.37)	0.49	1.19 (0.64, 2.20)	0.57	1.05 (0.56, 1.96)	0.87
$20,000–49,999	1.45 (0.78, 2.70)	0.24	1.37 (0.72, 2.56)	0.33	1.16 (0.60, 2.22)	0.66
<$19,999	2.83 (1.42, 5.63)	0.003	2.53 (1.32, 4.83)	0.01	2.11 (1.08, 4.09)	0.03
Refused/No Answer	1.24 (0.63, 2.41)	0.53	1.27 (0.68, 2.34)	0.45	1.11 (0.59, 2.08)	0.74
Educational attainment
Graduate (Referent)	–		–		–
Bachelor's	1.95 (1.06, 3.59)	0.03	1.80 (1.00, 3.22)	0.05	1.65 (0.90, 3.03)	0.10
Some College	1.95 (1.03, 3.66)	0.04	1.68 (0.89, 3.18)	0.11	1.50 (0.78, 2.84)	0.22
High school/Vocational	2.51 (1.40, 4.49)	0.002	1.99 (1.12, 3.54)	0.02	1.75 (0.97, 3.15)	0.06

Model 1 adjusted for age, sex, race.

Model 2 adjusted for Model 1 components plus body mass index, heart failure, hypertension, diabetes, vascular disease, and smoking status.

Model 3 adjusted for Model 2 components plus either income or education.