Table 2.

Association between AF burden and outcomes among patients with and without heart failure at baseline.

	Unadjusted Model		Adjusted Model
	Hazard Ratio (95% CI)	P-value	Hazard Ratio (95% CI)	P-value
Patients with no heart failure at baseline
New Onset HF at 1 Year
Percent in AF, per 10	1.076(1.050, 1.101)	<.001	1.089 (1.063, 1.115)	<.001
Maximum Duration, per 1 hr	1.002(1.000, 1.003)	0.012	1.002(1.000, 1.002)	0.005
Mortality at 1 Year
Percent in AF, per 10	1.035 (0.994, 1.077)	0.100	1.053(1.011, 1.096)	0.012
Maximum Duration, per 1 hr	0.998(0.993, 1.003)	0.461	0.999(0.995, 1.003)	0.326
Patients with heart failure at baseline
HF Hospitalization at 1 Year
Percent in AF, per 10	1.044(1.034, 1.054)	<.001	1.048(1.038, 1.059)	<.001
Maximum Duration, per 1 hr	1.001(1.000, 1.001)	<.001	1.001(1.000, 1.001)	0.004
Mortality at 1 Year
Percent in AF, per 10	1.064(1.047, 1.081)	<.001	1.063(1.046, 1.080)	<.001
Maximum Duration, per 1 hr	1.001(1.000, 1.001)	0.024	1.001(1.000, 1.001)	0.005

AF: atrial fibrillation; HF: heart failure; CI: confidence interval.