Increased risk of atrial fibrillation in patients with inflammatory bowel disease: A nationwide population-based study

Table 2 Risk of atrial fibrillation in patients with inflammatory bowel disease

	IBD group	Control group	CD group	Control group	UC group	Control group
	n = 37696	n = 113088	n = 12349	n = 37047	n = 25347	n = 76041
New-onset AF	348	772	95	145	253	627
Incidence rate1	1.90	1.40	1.59	0.80	2.05	1.69
Adjusted HR2	1.36	1 (reference)	1.91	1 (reference)	1.24	1 (reference)
95%CI	1.20–1.55		1.47-2.49		1.07-1.43

¹Incidence rates have been calculated per 1000 patient-years within a population aged > 20 years who had not previously been diagnosed with atrial fibrillation;

²Adjusted with respect to age, sex, place, income, diabetes mellitus, hypertension, dyslipidemia, previous history of stroke, ischemic heart disease, venous thromboembolism, and end-stage renal disease. AF: Atrial fibrillation; CI: Confidence interval; CD: Crohn’s disease; HR: Hazard ratio; IBD: Inflammatory bowel disease; UC: Ulcerative colitis.