Baseline characteristics of participants with AF detected by SL-ECG or self-reported AF versus those with no AF
| Total (n=9807) | AF detected by SL-ECG or self-reported by participants (n=1111) | No AF (n=8696*) | p Value | |
|---|---|---|---|---|
| Age (years) | 65.5±13.3 | 70.5±11 | 64.8±13.4 | <0.001 |
| Sex (F), n (%) | 7058 (72) | 716 (64.4) | 6342 (72.9) | <0.001 |
| Weight (kg) | 59±10.4 | 59.9±10.4 | 58.8±10.4 | 0.001 |
| Height (cm) | 157.3±8.6 | 158±9 | 157.2±8.6 | 0.009 |
| BMI (kg/m2) | 23.8±3.6 | 24±3.5 | 23.8±3.6 | 0.076 |
| Waist circumference (cm) | 83.5±9.8 | 85±9.6 | 83.3±9.8 | <0.001 |
| Comorbid conditions | ||||
| Hypertension, n (%) | 3720 (37.9) | 421 (37.9) | 3299 (37.9) | 1.0 |
| Diabetes, n (%) | 1515 (15.4) | 232 (20.9) | 1283 (14.8) | <0.001 |
| Hyperlipidaemia, n (%) | 1934 (19.7) | 332 (29.9) | 1602 (18.4) | <0.001 |
| Heart failure, n (%) | 85 (0.9) | 56 (5) | 29 (0.3) | <0.001 |
| Stroke, n (%) | 284 (2.9) | 70 (6.3) | 214 (2.5) | <0.001 |
| Coronary artery disease, n (%) | 206 (2.1) | 89 (8) | 117 (1.3) | <0.001 |
| Valvular heart disease, n (%) | 84 (0.9) | 47 (4.2) | 37 (0.4) | <0.001 |
| Peripheral vascular disease, n (%) | 48 (0.5) | 22 (2) | 26 (0.3) | <0.001 |
| Obstructive sleep apnoea, n (%) | 88 (0.9) | 17 (1.5) | 71 (0.8) | 0.026 |
| Thyroid disease, n (%) | 366 (3.7) | 40 (3.6) | 326 (3.7) | 0.867 |
| COPD, n (%) | 37 (0.4) | 10 (0.9) | 27 (0.3) | 0.007 |
| Cardiothoracic surgery, n (%) | 266 (2.7) | 107 (9.6) | 159 (1.8) | <0.001 |
*Participants who reported ‘don't know’ for a history of AF together with AF not detected by SL-ECG were excluded.
AF, atrial fibrillation; BMI, body mass index; COPD, chronic obstructive pulmonary disease; F, female; SL-ECG, wireless single-lead ECG.