Table 2.
Incremental cost-effectiveness ratios (ICERs) over a range of HIV/HCV NAT costs and population prevalence values
| Cost of NAT, $ (for each test) | HIV
|
HCV
|
HIV/HCV combined
|
||
|---|---|---|---|---|---|
| Prevalence (%) | ICER1 ($) | Prevalence (%) | ICER1 ($) | ICER2 ($) | |
| 150 | 1.53 | 161 013 | 18.23 | Dominant | 86 653 |
| 1.0 | 318 344 | 12.9 | Dominant | 188 727 | |
| 0.5 | 790 336 | 5.6 | Dominant | 497 589 | |
| 0.21 | 2 093 933 | 3.5 | 3290 | 1 337 023 | |
| 0.10 | 4 566 272 | 1.5 | 46 631 | 2 943 124 | |
| 300 | 1.5 | 470 989 | 18.2 | Dominant | 287 814 |
| 1.0 | 785 650 | 12.9 | Dominant | 491 963 | |
| 0.5 | 1 729 634 | 5.6 | 10 301 | 1 109 687 | |
| 0.21 | 4 336 828 | 3.5 | 34 680 | 2 788 553 | |
| 0.10 | 9 281 506 | 1.5 | 121 363 | 6 000 756 | |
| 500 | 1.5 | 884 289 | 18.2 | Dominant | 556 029 |
| 1.0 | 1 408 725 | 12.9 | Dominant | 896 277 | |
| 0.5 | 2 982 031 | 5.6 | 35 901 | 1 925 817 | |
| 0.21 | 7 327 354 | 3.5 | 76 534 | 4 723 927 | |
| 0.103 | 15 568 484 | 1.53 | 221 006 | 10 077 599 | |
“Dominant” = resulted in improved outcomes at reduced costs. HCV, hepatitis C virus; HIV, human immunodeficiency virus; NAT, nucleic acid-amplification testing.
The ICER is the ratio of the (difference in costs)/(difference in quality-adjusted life years) with the implementation of NAT plus antibody testing versus antibody testing alone of solid organ transplant donors.
The range of ICERs for the combined HIV/HCV NAT is reported for testing at 2× the cost quoted in Column 1 (i.e. $300, $600 and $1000).
The “favorable” scenario is low costs and high prevalence. The “unfavorable” scenario is high costs and low prevalence. All other scenarios are intermediate.