Table 4.
The duration of atrial fibrillation since its first diagnosis does not differ between patients with or without symptoms
| Duration since initial AF diagnosis | EHRA I (N = 568) | EHRA II (N = 2643) | EHRA III (N = 2377) | EHRA IV (N = 1569) |
|---|---|---|---|---|
| Less than 1 year, % (n) | 30.3 (172) | 25.8 (683) | 27.1 (643) | 28.6 (449) |
| 1–2 years, % (n) | 7.4 (42) | 9.0 (237) | 9.4 (224) | 9.1 (142) |
| 2–3 years, % (n) | 4.8 (27) | 6.4 (169) | 6.3 (149) | 5.4 (84) |
| 3–4 years, % (n) | 4.9 (28) | 5.0 (133) | 4.5 (108) | 4.9 (77) |
| 4–5 years, % (n) | 3.4 (19) | 4.5 (118) | 4.7 (112) | 3.6 (57) |
| More than 5 years, % (n) | 26.9 (153) | 25.0 (661) | 25.2 (598) | 27.8 (436) |
| Unknown, % (n) | 22.4 (127) | 24.3 (642) | 22.8 (543) | 20.7 (324) |
| Duration since initial AF diagnosis | EHRA I (N = 441)a | EHRA II (N = 2001)a | EHRA III (N = 1834)a | EHRA IV (N = 1245)a |
| Duration, mean (years) | 4.6 | 4.6 | 4.5 | 4.9 |
| Duration, lower quartile (years) | 0.5 | 0.6 | 0.5 | 0.4 |
| Duration, median (years) | 2.2 | 2.3 | 2.3 | 2.4 |
| Duration, upper quartile (years) | 7.3 | 6.8 | 6.7 | 7.2 |
aReduced by number of unknown cases.