Table 7.
Lifetime Cost-Effectiveness Results for Base Case and Sensitivity Analyses
Cost with CABG, $ | Cost with PCI, $ | Δ Cost ($) (95% CI) | QALYs with CABG | QALYs with PCI | ΔQALYs with CABG (95%CI) | ICER ($/QALY) | % Dominant | % Dominated | %< $50K | ||
---|---|---|---|---|---|---|---|---|---|---|---|
Tapered CABG Effect Between 5 and 10 Years | Base Case | 114,571 | 109,179 | 5,392 (399, 10,320) | 10.667 | 10.004 | 0.663 (0.177, 1.132) | 8,132 | 1.5 | 0.4 | 99.2 |
Lifetime analysis, Cost per Life Year Gained* | 114,571 | 109,179 | 5,392 (399, 10,320) | 12.177* | 11.383* | 0.794* | 6,791* | 1.5 | 0.2 | 99.7 | |
Lifetime analysis, Per Protocol population | 114,855 | 108,878 | 5,976 (1,207, 10,925) | 10.688 | 9.980 | 0.708 (0.202, 1.221) | 8,440 | 0.7 | 0.2 | 99.3 | |
10 year time frame | 81,710 | 80,295 | 1,416 (−2,061, 5,017) | 6.684 | 6.455 | 0.230 (−0.008, 0.457) | 6,156 | 22.8 | 1.7 | 95.8 | |
Lifetime analysis, no CABG effect on long term costs | 121,244 | 109,179 | 12,045 (6,933, 17,103) | 10.667 | 10.004 | 0.663 (0.177, 1.132) | 18,167 | 0.0 | 0.5 | 97.4 | |
Fixed CABG Effect Between 5 and 10 Years | Lifetime analysis | 116,147 | 109,179 | 6,968 (1,273, 12,327) | 10.867 | 10.004 | 0.864 (0.278, 1.426) | 8,064 | 0.7 | 0.2 | 99.7 |
10 year analysis | 81,846 | 80,295 | 1,551 (−1,822, 5,292) | 6.704 | 6.455 | 0.249 (0.016, 0.519) | 6,229 | 18.8 | 1.4 | 96.7 | |
No Effect of CABG after 5 Years | Lifetime analysis | 118,664 | 109,179 | 9,485 (4,905, 13,995) | 10.355 | 10.004 | 0.351 (−0.033, 0.713) | 27,022 | 0.0 | 3.3 | 82.4 |
10 year analysis | 87,155 | 80,295 | 6,861 (3,408, 10,230) | 6.541 | 6.455 | 0.086 (−0.088, 0.254) | 79,779 | 0.0 | 17.8 | 27.0 |
Results presented in row 2 represent life years (columns 6–8) and cost per life year gained (column 9)
All costs, life-years, and QALYs discounted at 3% per year