Volume 13, Number 10—October 2007
THEME ISSUE
Global Poverty and Human Development
Research
Cost-effectiveness of Algorithms for Confirmation Test of Human African Trypanosomiasis
Table 4
Algorithm | Effectiveness† | Incremental effectiveness‡ | Cost per examined person, € | Incremental cost, €‡ | Efficiency§ | Incremental cost-effectiveness ratio¶ |
---|---|---|---|---|---|---|
LNP-FBE-TBF | 36.80 | 1.56 | 423.91 | |||
LNP-CTC | 55.00 | 18.20 | 1.74 | 0.18 | 316.36 | 98.90 |
LNP-CATT titration-CTC-mAECT | 64.50 | 9.50 | 1.96 | 0.22 | 303.88 | 231.58 |
LNP-CTC-mAECT | 77.60 | 13.10 | 2.06 | 0.10 | 265.46 | 76.34 |
LNP-CTC-CATT titration | 77.80 | 0.20 | 2.82 | 0.76 | 362.47 | Dominated |
LNP-TBF-CTC-mAECT | 79.60 | 2.00 | 2.1 | 0.04 | 263.82 | 200.00 |
LNP-TBF-CTC-mAECT-CATT titration | 83.00 | 3.40 | 2.99 | 0.89 | 360.24 | 2617.65 |
*HAT prevalence 1%. HAT, human African trypanosomiasis; LNP, lymph node puncture; FBE, fresh blood examination; TBF, thick blood film; CTC, capillary tube centrifugation; CATT, card agglutination test for trypanosomiasis; CATT titration, CATT titration at end-titer 8; mAECT, mini-anion-exchange centrifugation technique. Cost/effectiveness ratio calculated as cost / (effectiveness × prevalence). Differences due to rounding in table. US $1 = Euro 0.79, Feb 2004.
†% HAT deaths averted.
‡Cost and effectiveness calculated incremental to next least effective nondominated algorithm after ranking all algorithms by effectiveness.
§Cost-effectiveness per life saved.
¶Incremental cost-effectiveness ratio calculated as incremental cost / (incremental effectiveness × HAT prevalence). Differences due to rounding in table. All incremental changes expressed in comparison with LNP-FBE-TBF algorithm.