Baseline characteristics of the population
| Overall population (N=228) | Validation set (N=179) | Testing set (N=49) | |
| Age, years | 78±7 | 78±7 | 79±7 |
| Body surface area, m2 | 1.8±0.2 | 1.8±0.2 | 1.8±0.2 |
| Male gender | 142 (62) | 107 (60) | 35 (71) |
| Sinus rhythm | 192 (88) | 154 (86) | 38 (84) |
| Bicuspid valve | 22 (10) | 15 (8) | 7 (18) |
| Ejection fraction, % | 54±14 | 61±6 | 30±7 |
| Absolute aortic valve area, cm2 | 1.10±0.46 | 1.20±0.47 | 0.77±0.21 |
| Indexed aortic valve area, cm2/m2 | 0.62±0.25 | 0.67±0.25 | 0.43±0.12 |
| Mean gradient, mm Hg | 35±20 | 33±20 | 40±18 |
| Peak aortic valve velocity, m/s | 3.60±1.01 | 3.52±1.03 | 3.9±0.9 |
| Severe aortic stenosis (valve area <1 cm2) | 119 (52) | 81 (45) | 38 (77) |
| Calcium scoring, AU | 2227±1786 | 1934±1712 | 3265±1676 |
Results are mean±standard deviation or number of patients (percentage). AU, arbitrary unit.