Table 4. HR of incident AF according to co-morbidity.

Co-morbidity	HR (95% CI)
	Unadjusted	Model 1	Model 2
Hypertension	3.762 (3.521-4.019)	2.102 (1.955-2.260)	1.667 (1.537-1.807)
IHD	3.595 (3.314-3.899)	2.187 (2.012-2.378)	1.639 (1.498-1.792)
Heart failure	4.234 (3.857-4.647)	2.300 (2.089-2.534)	1.521 (1.372-1.687)
Diabetes mellitus	2.267 (2.102-2.444)	1.364 (1.262-1.474)	1.048 (0.966-1.136)

Model 1: adjusted for age and sex. Model 2: adjusted for age sex, body mass index and other co-morbidities. HR: hazard ratio, AF: atrial fibrillation, CI: confidence interval, IHD: ischemic heart disease