Table 2. Incidence of AF during the 6-year follow-up period according to age and sex.

	N	Cases (%)	Person-year	Incidence rate (per 1000 person-year)
Overall (years)	206013	3517 (1.71)	1223496	2.87
30-39	53278	242 (0.45)	318761	0.76
40-49	66143	629 (0.95)	394606	1.59
50-59	42890	799 (1.86)	254495	3.14
60-69	30501	1090 (3.57)	179161	6.08
70-79	11363	628 (5.53)	65922	9.53
≥80	1838	129 (7.02)	10551	12.23
Male (years)	121226	2043 (1.69)	719957	2.84
30-39	40539	200 (0.49)	242501	0.82
40-49	37332	384 (1.03)	222610	1.72
50-59	22608	484 (2.14)	133905	3.61
60-69	14834	589 (3.97)	86863	6.78
70-79	5095	325 (6.38)	29418	11.05
≥80	818	61 (7.46)	4660	13.09
Female (years)	84787	1474 (1.74)	503539	2.93
30-39	12739	42 (0.33)	76260	0.55
40-49	28811	245 (0.85)	171996	1.42
50-59	20282	315 (1.55)	120590	2.61
60-69	15667	501 (3.20)	92298	5.43
70-79	6268	303 (4.83)	36504	8.30
≥80	1020	68 (6.67)	5891	11.54

AF: atrial fibrillation