Table 1. Decision model parameters.
Parameter | Base value (SD or range) | Distribution | Source |
Annual dengue incidence rate (%) | 5.8 | Beta (331, 5429) | [25] |
Proportion of asymptomatic cases (%) | 53.4 | Beta (177, 154) | [25] |
Proportion of non-hospitalized DF cases (%) | 81.5 | Point estimate | [25] |
Proportion of hospitalized DF cases (%) | 7.4 | Point estimate | [25] |
Proportion of hospitalized DHF cases (%) | 11.1 | Point estimate | [25] |
Case fatality rate for DF (%) | 0.0027 | Point estimate | [31] |
Case fatality rate for DHF (%) | 0.15 (0.0002) | Beta | [32] |
Duration of illness for non-hospitalized DF (days) | 4.4 (1–25) | LogNormal (1.48, 0.09) | [26] |
Duration of illness for hospitalized DF (days) | 6.4 (2–17) | LogNormal (1.85, 0.11) | [26] |
Duration of illness for DHF (days) | 8.4 (3–25) | LogNormal (2.12, 0.09) | [26] |
Duration of hospitalization for dengue (days) | 4.9 (3.3) | LogNormal (1.59, 0.05) | [6] |
Disability weight for symptomatic DF | 0.197 | Point estimate | [34] |
Disability weight for DHF | 0.545 | Point estimate | [34] |
Social discount rate | 0.03 | Point estimate | [35] |
Effectiveness of insecticide-treated school uniforms (%) | 5–100 | Threshold analysis | − |
50 (low) 75 (high) 100 (full) | Scenario analysis | ||
Number of ambulatory visits for non-hospitalized denguea | 4.2 (2.7) | LogNormal (1.43, 0.02) | [6] |
Number of ambulatory visits for hospitalized dengue | 4.2 (2.0) | LogNormal (1.43, 0.04) | [6] |
Number of school days lost for non-hospitalized denguea | 4.2 (3.2) | LogNormal (1.43, 0.02) | [6] |
Number of school days lost for hospitalized dengue | 5.5 (3.4) | LogNormal (1.70, 0.05) | [6] |
Number of work days lost for non-hospitalized denguea | 4.0 (5.6) | LogNormal (1.39, 0.05) | [6] |
Number of work days lost for hospitalized denguea | 3.9 (5.0) | LogNormal (1.36, 0.10) | [6] |
Cost per ambulatory care visitb | 15.87 | Point estimate | [6] |
Minimum daily wagec (300 TBH) | 9.81 | Point estimate | [36] |
Daily cost of providing education per studentb | 2.34 | Point estimate | [6] |
Cost of food for an attendant family member per day of hospitalizationc (50 THB) | 1.63 | Point estimate | [26] |
Cost of transportation for an attendant family member per clinical visit or day of hospitalizationc (10 THB) | 0.33 | Point estimate | [26] |
Mark-up cost of impregnation per child per year | 0–10 | Threshold analysis | − |
2.5 (low) 5 (moderate) 10 (high) | Scenario analysis |
(all costs are in US dollars for the year 2012).
DF = Dengue Fever; DHF = Dengue Hemorrhagic Fever; THB: Thai Baht.
Values correspond to mean values reported for 8 dengue endemic countries [6].
Costs reported for 2005 were adjusted to 2012, using an inflation rate of 3%.
Using an average exchange rate of 1 USD = THB 30.60 for the year 2012 [36].