Baseline characteristics of analytical cohort with and without atrial fibrillation (AF)
| Incident AF | ||
| No AF n (%) | AF n (%) | |
| 2 073 753 | 7386 | |
| Demographics | ||
| Age, years | 49.82 (15.37) | 73.72 (12.62) |
| Sex (women) | 1 051 942 (50.7) | 3619 (49.0) |
| Comorbidities | ||
| Diabetes mellitus | 71 966 (3.5) | 815 (11.0) |
| Stroke or TIA | 37 773 (1.8) | 892 (12.1) |
| Ischaemic heart disease | 77 060 (3.7) | 1542 (20.9) |
| Hypertension | 247 436 (11.9) | 2887 (39.1) |
| Heart failure | 13 717 (0.7) | 650 (8.8) |
| Dyslipidaemia | 60 357 (2.9) | 532 (7.2) |
| Hyperthyroidism | 16 147 (0.8) | 155 (2.1) |
| COPD | 24 962 (1.2) | 461 (6.2) |
| Chronic kidney disease | 29 359 (1.4) | 449 (6.1) |
| Anaemia | 66 844 (3.2) | 501 (6.8) |
| Cancer | 72 621 (3.5) | 887 (12.0) |
| Valvular heart disease | 9 497 (0.5) | 376 (5.1) |
| Mean CHA2DS2-VASc score (SD) | 0.97 (1.03) | 2.72 (1.42) |
CHA2DS2-VASc, Congestive heart failure, Hypertension, Age >75 years (2 points), Stroke/transient ischaemic attack/thromboembolism (2 points), Vascular disease, Age 65–74 years, Sex category; COPD, chronic obstructive pulmonary disease; TIA, transient ischaemic attack.