Table 1.
Baseline patient characteristics and reported left ventricular ejection fraction across the echocardiograms
| Characteristics | Primary group n (%) (N = 403 977) |
|---|---|
| Age, mean (SD), years | 63.8 (15.9) |
| Male | 208 408 (52) |
| BMI, mean (SD), kg/m2 | 30.5 (7.8) |
| Previous myocardial infarction | 38 085 (9) |
| Hypertension | 196 742 (49) |
| Diabetes mellitus | 91 464 (23) |
| Atrial fibrillation | 65 866 (16) |
| Congenital heart defect | 16 110 (4) |
| Dyslipidaemia | 176 109 (44) |
| Chronic kidney disease | 55 092 (14) |
| Heart failure | 52 192 (13) |
| Positive smoking history | 232 951 (58) |
| LVEF, mean (SD), % | 55.2 (11.1) |
| Under 20 | 5205 (1) |
| 20–25 | 7202 (2) |
| 25–30 | 8814 (2) |
| 30–35 | 9726 (2) |
| 35–40 | 10 595 (3) |
| 40–45 | 14 478 (4) |
| 45–50 | 15 889 (4) |
| 50–55 | 41 895 (10) |
| 55–60 | 138 705 (34) |
| 60–65 | 103 433 (26) |
| 65–70 | 34 508 (9) |
| Over 70 | 13 563 (3) |
BMI, body mass index; LVEF, left ventricular ejection fraction.