Parameter alterations | Effect on ACER and ICER | CEA conclusion |
---|---|---|
Discount rate in estimating capital costs is 10% instead of 3% | No effect as cost of both AL and SP rise by same margin | Unchanged |
AL costs 10% more than estimated | ACER increases to US$8.67 ICER increases to US$4.57 | Unchanged in terms of ACER but ICER increases by 18% |
AL costs 15% more than estimated | ACER increases to US$8.75 ICER to US$4.81 | Unchanged in terms of ACER but ICER increases by nearly 20% |
AL costs 50% more than estimated | ACER and ICER of AL increase to US$9.29 and US$6.47 | Unchanged in terms of ACER but ICER increases by 27% |
Compliance of AL is lower at 65% | ACER increases to US$9.02 ICER increases to US$4.95 | Unchanged but ICER increases by |
Efficacy of AL is lower at 90% | ACER increases to US$9.17 ICER to US$5.25 | Unchanged but ICER increases by nearly 30% |
Efficacy of AL is lower at 80% | ACER increases to US$10.12 ICER increases to US$7.99 | Unchanged but ICER increases by 95% |
Proportion of patients seeking second line treatment is 4.7% in both AL and SP | ICER of AL is now US$3.10 | The cost of additional successfully treated case is US$3.10 |
Diagnosis of malaria is poor and 60% of cases treated are actually non-malaria cases for both AL and SP | Incremental cost will remain the same but the number of cases successfully treated will drop. The cost per cases successfully treated rises proportionately to US$ 21.29 and US$26.62 for AL and SP respectively. ICER rises from US$4.10 to US$10.25. | Decision still in favour of AL but the costs are much higher with ICER more-than doubling |
Proportion of patients progressing to severe malaria is same at 4.7% for both AL and SP | ACER of SP decreases substantially from US$20.78 to $15.75 but still higher in relation to AL. ICER increases from US$-11.52 to US$-0.94. | ACER and ICER conclusions remain same |