Table 3.

Risk of In-Hospital Mortality Associated with Hospitalization for Atrial Fibrillation in Rural versus Urban Hospitals^*

Group	OR† (95%CI)	P-interaction	OR‡ (95%CI)	P-interaction
All	1.17 (1.04, 1.32)		1.19 (1.01, 1.39)
Sex
Men	1.26 (1.06, 1.50)	0.30	1.41 (1.10, 1.80)	0.10
Women	1.11 (0.96, 1.29)		1.06 (0.87, 1.30)
Race
White	1.18 (1.04, 1.34)	0.75	1.23 (1.03, 1.46)	0.48
Black	1.13 (0.66, 1.94)		0.68 (0.31, 1.48)
Other	1.07 (0.77, 1.49)		1.12 (0.72, 1.74)
Region
Northwest	1.12 (0.83, 1.52)	0.78	1.17 (0.76, 1.79)	0.60
Midwest	1.25 (1.01, 1.54)		1.39 (1.03, 1.86)
South	1.12 (0.94, 1.33)		1.11 (0.88, 1.41)
West	1.26 (0.88, 1.80)		1.11 (0.68, 1.81)

^*Estimates represent the odds of death in rural compared with urban hospitals in the overall sample and in subgroups.

^†Adjusted for age, sex, race, insurance, hospital region, obesity, hypertension, diabetes, heart failure, chronic lung disease, peripheral vascular disease, renal failure, liver disease, hypothyroidism, depression, alcohol abuse, and anemia.

^‡Results of 1:1 propensity score-matched analysis. Propensity score was computed using multivariable logistic regression with the following variables: age, sex, race, insurance, hospital region, obesity, hypertension, diabetes, heart failure, chronic lung disease, peripheral vascular disease, renal failure, liver disease, hypothyroidism, depression, alcohol abuse, and anemia (N=58,896).

CI=confidence interval; OR=odds ratio.