Table 1.
Characteristics of the 612 Participants Included in the Analysis by Early AF Pattern
| Characteristic | Overall | AF Without 2‐Year Recurrence | Recurrent AF | Sustained AF | Indeterminate | Inadequate Data |
|---|---|---|---|---|---|---|
| No. of participants | 612 | 63 (10) | 162 (26) | 207 (34) | 46 (8) | 134 (22) |
| No. of electrocardiograms | 3.2±2.3 | 2.9±1.3 | 5.1±2.9 | 3.2±1.6 | 3.3±1.5 | 1±0 |
| First‐detected AF identified at FHS* | 132 (22) | 6 (10) | 6 (4) | 64 (31) | 3 (7) | 53 (40) |
| Age, y | 73±11 | 71±11 | 72±11 | 75±10 | 71±12 | 70±11 |
| Men | 327 (53) | 37 (59) | 86 (53) | 105 (51) | 26 (57) | 73 (54) |
| Body mass index, kg/m2 | 28±5 | 28.1±4.5 | 28.2±5.1 | 28.0±5.5 | 28.4±5.4 | 27.2±5.0 |
| Systolic blood pressure, mm Hg | 141±22 | 143±22 | 142±22 | 144±21 | 137±19 | 138±24 |
| Antihypertensive therapy | 290 (54) | 36 (63) | 76 (52) | 97 (54) | 26 (59) | 55 (47) |
| Smoker | 84 (16) | 7 (12) | 17 (12) | 22 (12) | 7 (16) | 31 (27) |
| Diabetes mellitus | 87 (16) | 9 (16) | 22 (15) | 36 (20) | 10 (23) | 10 (9) |
| Heart rate, bpm | 68±13 | 66±12 | 66±12 | 70±15 | 65±12 | 68±13 |
| Left ventricular hypertrophy | 28 (5) | 5 (9) | 9 (6) | 11 (6) | 0 | 3 (3) |
| Clinically significant heart murmur | 77 (15) | 7 (12) | 16 (12) | 39 (22) | 3 (7) | 12 (11) |
| History of heart failure | 79 (13) | 4 (6) | 26 (16) | 34 (16) | 5 (11) | 11 (8) |
| History of myocardial infarction | 116 (19) | 17 (27) | 42 (26) | 23 (11) | 11 (24) | 23 (17) |
| History of coronary artery bypass surgery | 36 (6) | 9 (14) | 17 (10) | 6 (3) | 4 (9) | 0 (0) |
| Within 30 days of incident AF | 14 (2) | 5 (8) | 5 (3) | 2 (1) | 2 (4) | 0 (0) |
| History of stroke | 74 (12) | 5 (8) | 24 (15) | 24 (12) | 8 (17) | 13 (10) |
Data are shown as mean±standard deviation or number (%). AF indicates atrial fibrillation.
*
Compared with detection in a hospital or emergency department, by an outside clinician, on an outside electrocardiogram or Holter monitor, or by history alone. Detection at FHS refers to detection on a Framingham Heart Study electrocardiogram or Holter monitor.