Table A1.
Input parameters of the network model.
| Parameter name | Value | Source |
|---|---|---|
| Demographic parameters | ||
| Population size | ||
| Number of men, Nm | 5,000 | Assumed |
| Number of women, Nf | 3,503 | Calculated |
| Female-to-Male Ratio | 1.43 | Calculated§ |
| Monthly entry rate, rm and rf(%) | 0.10, 0.10 | [39] |
| Non-HIV, Non-HCV annual mortality rate (%) | 1.10 | [40, 41] |
| HIV prevalence (%) | ||
| IDU | 7.39 | [31] |
| Non-IDU | 0.40 | [39, 42] |
| HCV prevalence (%) | ||
| IDU | 35 | [43] |
| Non-IDU | 1.30 | [39, 44] |
| Access to treatment (%) | ||
| HIV | 69 | [45] |
| HCV | 25 | [46, 47] |
| Sexual partnership characteristics | ||
| Have a regular partner (%) | ||
| Male IDU, sm | 58 | [35] |
| Female IDU, sf | 82 | Calculated |
| Partnership duration (months) | ||
| Regular, σr | 24 | [20] |
| Casual, σc | 6 | Estimated* |
| Concurrent partnership distributions, m(p) and f(p) (%) | Estimated*†, [35] | |
| 0 partners | 26, 15 | |
| 1 partner | 51, 48 | |
| 2 partners | 17, 12 | |
| 3 partners | 6, 25 | |
| Needle-sharing relationship characteristics | ||
| Share needles with regular partner (%) | 20 | [35] |
| Steady needle-sharing relationship duration, σn (months) | 36 | [48] |
| Sharing relationship distribution, n(p) (%) | Estimated*†, [35] | |
| 0 partners | 64 | |
| 1 partner | 21 | |
| 2 partners | 11 | |
| 3 partners | 3 | |
| 4 partners | 1 | |
§
Close to the figure reported in [42].
*
Estimated through calibration.
†
Adjustment through calibration was minimal; thus these values closely reflect the Community Outreach Intervention Project (COIP) data.