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. 2014 Sep 23;9(9):e108017. doi: 10.1371/journal.pone.0108017

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.

a

Values correspond to mean values reported for 8 dengue endemic countries [6].

b

Costs reported for 2005 were adjusted to 2012, using an inflation rate of 3%.

c

Using an average exchange rate of 1 USD  =  THB 30.60 for the year 2012 [36].