Table 2 Input parameters of the cost-effectiveness model
Input parameters | Base value | Low value | High value | SD | Distribution | Data sources |
|---|---|---|---|---|---|---|
Cost of positive for facility-based VCT | 158.82 | 127.06 | 190.59 | 10.00 | Gama | Primary |
Cost of negative for facility-based VCT | 4.95 | 3.96 | 5.94 | 0.49 | Gama | Primary |
Cost of positive for stand-alone VCT | 150.97 | 120.78 | 181.17 | 10.00 | Gama | Primary |
Cost of negative for stand-alone VCT | 6.39 | 5.11 | 7.67 | 0.64 | Gama | Primary |
Cost of positive for mobile-based VCT | 135.53 | 108.42 | 162.63 | 10.00 | Gama | Primary |
Cost of negative for mobile-based VCT | 3.28 | 2.63 | 3.9 | 0.32 | Gama | Primary |
Probability of being tested at facility-based VCT | 0.050 | 0.030 | 0.100 | 0.006 | Beta | Primary |
Probability of being tested at stand-alone VCT | 0.120 | 0.080 | 0.160 | 0.020 | Beta | Primary |
Probability of being tested at mobile-based VCT | 0.340 | 0.200 | 0.400 | 0.080 | Beta | Primary |
Test sensitivity | 0.997 | 0.993 | 1.000 | 0.001 | Beta | [42] |
Test specificity | 0.992 | 0.990 | 1.000 | 0.002 | Beta | [42] |
HIV positivity rate: facility VCT | 0.032 | 0.022 | 0.042 | 0.001 | Beta | Primary |
HIV positivity rate: stand-alone VCT | 0.043 | 0.033 | 0.053 | 0.001 | Beta | Primary |
HIV positivity rate: mobile-based VCT | 0.025 | 0.015 | 0.035 | 0.001 | Beta | Primary |