Results of 1-way sensitivity analyses
| Parameter | ICER per QALY gained* |
|---|---|
| Base case analysis | 6194 |
| Response rate | |
| 30% | 5679 |
| 90% | 5943 |
| AAA prevalence | |
| 2% | 9013 |
| 8% | 4680 |
| Age at initial screening | |
| 75 y | 10 912 |
| 80 y | 18 649 |
| Incidental detection (annually) | |
| 20% | 7495 |
| 40% | 11 650 |
| Risk of rupture for large aneurysms (annually) | |
| 10% | 11 001 |
| 22% | 4140 |
| Dropout from US surveillance (annually) | |
| 10% | 6462 |
| 50% | 9275 |
| Cost of US | |
| $50 | 5073 |
| $150 | 9316 |
| Cost of inpatient care | |
| Doubling | 4611 |
| Cost of morbidity | |
| Doubling | 6607 |
| Follow-up by serial CT scan | 8777 |
| Elective AAA repair by EVAR | |
| 10% | 6740 |
| 50% | 8471 |
| Discount rate (cost and QALY) | |
| 0% | 2445 |
| 3% | 4493 |
ICER = incremental cost-effectiveness ratio; QALY = quality-adjusted life years; AAA = abdominal aortic aneurysm; US = ultrasonography; EVAR = endovascular aneurysm repair.
↵* CAN$.