Odds ratio for event-free survival after first intervention in duct-dependent patients, adjusted for fractional shortening, with size of aortic valve annulus as effect modifier
| Aortic valve annulus (mm) | Adjusted OR |
| 5 | 0.15 |
| 5.5 | 0.25 |
| 6 | 0.44 |
| 6,5 | 0.74 |
| 6.775 | 1 |
| 7 | 1.27 |
| 7.5 | 2.18 |
| 8 | 3.72 |
| 8.5 | 6.37 |
Bold value shows the size of the aortic valve annulus when the OR is 1.
OR, Odds ratio.