Imaging parameters
| Overall n=164 | Female n=36 | Male n=128 | P value | |
| Echocardiography | ||||
| Peak aortic jet velocity (m/s) | 3.44 (3.00–3.87) | 3.26 (2.96–3.61) | 3.53 (3.00–3.94) | 0.106 |
| Mean aortic valve gradient (mm Hg) | 27 (18–34) | 24 (18–32) | 28 (19–34) | 0.400 |
| Aortic valve area (cm2) | 1.01 (0.82–1.24) | 1.03 (0.84–1.18) | 1.01 (0.81–1.27) | 0.735 |
| CT | ||||
| Bicuspid aortic valve | 11 (7) | 0 (0) | 11 (9) | 0.120 |
| Agatston score | 1163 (670–2169) | 460 (206–1010) | 1474 (823–2362) | <0.001 |
| Indexed contrast CT calcific volume (mm3/cm2) | 82 (42–181) | 33 (17–75) | 103 (55–194) | <0.001 |
| Indexed contrast non-calcific volume (mm3/cm2) | 79 (49–104) | 57 (39–98) | 82 (56–104) | 0.089 |
| Indexed fibrocalcific volume (mm3/cm2) | 187 (115–265) | 115 (72–184) | 203 (130–279) | <0.001 |
| Fibrocalcific ratio | 0.86 (0.47–1.54) | 1.27 (0.78–4.23) | 0.76 (0.41–1.45) | 0.002 |
| Blood pool radiodensity (HU) | 401 (326–511) | 550 (453–600) | 366 (319–467) | <0.001 |
HU, Hounsfield units.