Table 2.

Comorbidities and age distribution among patients hospitalised with atrial fibrillation (AF) having at least one comorbid disorder in Denmark and New Zealand

Characteristics	Denmark	New Zealand
Percentage of all patients with AF having at least one comorbid disorder	32.5	53.3
Age, years (at time of AF)
Age ≥75 years	50.7	52.8
Age 65–74 years	26.6	27.1
Women	47.8	48.3
Congestive heart failure	9.6	28.4
Hypertension	11.5	11.9
Diabetes	6.2	4.4
Acute myocardial infarction	10.3	15.5
Peripheral arterial disease	3.5	5.8
Coronary artery disease	11.2	16.8

The comorbid conditions were registered if they preceded an incident diagnosis of AF.

Data are percentages.