Table 2 Parameters used in the tree model
Items | Type of distribution of PSA | Point estimate | Distribution parameters for PSA | Ref | |
|---|---|---|---|---|---|
Cost (USD) | Screening cost | Gamma | 100 | α =27.3, λ =1/292 | |
Annual treatment fee among T2DM patients without complication | Gamma | 3500 | α =84,146, λ =1/3 | [12] | |
Annual treatment fee among T2DM patients with complication | Gamma | 8000 | α =26,540, λ =1/22 | [12] | |
Annual treatment fee among false positive patients with no medication | Gamma | 1400 | α =1752, λ =1/60 | [12] | |
Discount rate | – | 0.02 | – | [14] | |
Utility | Utility for healthy population | – | 1 | [13] | |
Utility for T2DM patients without complication | – | 0.785 | – | [13] | |
Utility for T2DM patients with complication | – | 0.638 | – | [13] | |
Risk | Mortality rate among healthy population | Life Table | – | – | |
Relative risk towards mortality rate among T2DM patients with complications | LogNormal | 5.61 | Log (mean) = 1.65, SE = 0.08 | [15] | |
Relative risk towards mortality rate among T2DM patients without complications | LogNormal | 2.61 | Log (mean) =0.95, SE = 0.14 | [15] | |
Annual complication rate | Beta | 0.014 | α =2.27, β =160.3 | [16] | |
Relative risk towards complication rate among T2DM patients with treatment | LogNormal | 0.79 | Log (mean) = −0.23, SE = 0.09 | [17] |