Table 3.

Incidence rates of death at 1 and 2 year follow-up in the KorAHF study population, stratified according to prior diagnosis of atrial fibrillation

Characteristics	At 1 year follow-up				At 2 year follow-up
	With AF (n = 2091)		Without AF (n = 3067)		With AF (n = 2091)		Without AF (n = 3067)
	Patients (%)	IR	Patients (%)	IR	Patients (%)	IR	Patients (%)	IR
Overall	446 (21.3)	26.45	643 (21.0)	26.05	626 (29.9)	20.61	905 (29.5)	20.36
Age, years
< 40	4 (8.7)	10.09	15 (6.7)	7.57	5 (10.9)	6.98	20 (8.9)	5.42
40–49	16 (16.2)	19.82	30 (12.4)	14.67	17 (17.2)	11.21	37 (15.3)	9.63
50–59	30 (12.7)	14.89	41 (10.2)	11.63	41 (17.4)	10.91	68 (16.9)	10.30
60–69	56 (14.0)	16.45	111 (18.4)	22.28	91 (22.8)	14.41	153 (25.3)	16.80
70–79	177 (22.2)	27.23	226 (23.9)	30.44	241 (30.2)	20.59	321 (34.0)	24.30
≥ 80	163 (31.8)	43.59	220 (33.9)	46.52	231 (45.1)	36.28	306 (47.1)	38.31
Sex
Male	230 (21.6)	26.77	354 (21.1)	26.41	316 (29.6)	20.24	500 (29.8)	20.51
Female	216 (21.1)	26.11	289 (20.8)	25.61	310 (30.2)	20.99	405 (29.1)	20.19
CHA2DS2-VASc score
1 (HF only)	17 (12.3)	14.56	20 (9.5)	11.03	20 (14.5)	9.22	28 (13.3)	8.19
2	32 (11.5)	13.13	59 (11.7)	13.64	45 (16.1)	9.87	82 (16.2)	10.15
3	63 (18.5)	22.09	72 (14.8)	17.60	83 (24.3)	15.68	108 (22.1)	14.35
4	95 (22.8)	28.80	115 (21.3)	26.44	138 (33.2)	23.25	168 (31.1)	21.46
5	92 (21.9)	28.00	148 (25.5)	32.66	135 (32.1)	22.96	209 (36.0)	26.25
6	79 (28.5)	37.57	122 (28.8)	37.53	111 (40.1)	30.65	155 (36.6)	27.32
≥ 7	68 (30.9)	39.58	107 (33.8)	45.97	94 (42.7)	32.21	155 (48.9)	39.21

Incidence rates per 100 person-years

Abbreviations: AF atrial fibrillation, IR incidence rate