Table 3 Results of the series of one-way sensitivity analyses to illustrate the impact of alternated cost parameters on the total costs of the Kato-Katz and the FLOTAC method for the diagnosis of soil-transmitted helminth infections.
Costs in US$ (change in %) | ||||
|---|---|---|---|---|
Parameter tested | Single Kato-Katz thick smear | Duplicate Kato-Katz thick smears | FLOTAC double technique | FLOTAC dual technique |
Baseline | 1.73 | 2.06 | 2.35 | 2.83 |
Costs due to salaries | ||||
Salaries increase by 100% | 2.99 (+72.3%) | 3.64 (+76.3%) | 3.99 (+69.8%) | 4.78 (+68.9%) |
30% of unproductive time per working step in the laboratory | 1.94 (+11.9%) | 2.41 (+16.8%) | 2.72 (+15.8%) | 3.35 (+18.4%) |
Costs due to materials | ||||
Material costs increase by 100% | 1.76 (+1.7%) | 2.10 (+1.9%) | 2.61 (+11.1%) | 3.26 (+15.2%) |
Costs due to infrastructure | ||||
Petrol costs increase by 100% | 1.88 (+8.6%) | 2.21 (+7.3%) | 2.50 (+6.4%) | 2.98 (+5.3%) |
Infrastructure costs increase by 100% | 2.18 (+25.9%) | 2.51 (+21.8%) | 2.80 (+19.2%) | 3.28 (+15.9%) |
Others | ||||
Stool samples brought to laboratory by participants | 0.75 (-56.8%) | 1.12 (-45.9%) | 1.40 (-40.6%) | 1.93 (-31.8%) |