Table 2.
Unit costs and cost decomposition in 2016 US$
| Description | Base US$ | Low US$ | High US$ | Source* |
|---|---|---|---|---|
| Cost of TST | 3.90 | 3.32 | 7.27 | Study; (30) |
| Nursing staff time (application and reading) | 1.55 | |||
| Consumables and materials (gloves, syringes, needles, box for syringes) | 1.51 | |||
| Training unit cost | 0.77 | |||
| Overhead unit cost | 0.07 | |||
| Cost of QGIT | 57.88 | 27.13 | 101.43 | Study |
| Nursing staff time | 1.44 | |||
| Consumables and materials | 12.15 | |||
| Laboratory cost | 38.99 | |||
| Sample transport cost | 5.26 | |||
| Overhead unit cost | 0.04 | |||
| Costs of IPT | ||||
| Isoniazid 300 mg/day (monthly) | 0.90 | Study | ||
| Initial consultation | 0.98 | 0.49 | 2.65 | Study |
| Follow-up out-patient consultation | 0.77 | 0.28 | 1.66 | Study |
| Total cost of IPT treatment (12 months) | 20.25 | 11.97 | 34.11 | Calculated; (31) |
| Costs related to DILI and TB treatment costs | ||||
| Basic laboratory test (blood count) | 4.18 | 1.05 | 7.32 | (32,33) |
| Liver function test | 9.47 | 2.37 | 16.57 | (32,33) |
| Sputum test | 2.13 | 1.08 | 2.33 | (32,33) |
| Chest X-ray | 20.08 | 9.92 | 24.91 | (32,33) |
| Out-patient follow-up at tertiary hospital | 13.32 | 9.80 | 38.93 | (31) |
| Hospitalization per diem | 116.15 | 47.80 | 126.64 | Study; (31) |
| Active TB treatment | 158.74 | 120.61 | 304.06 | (30,32) |
*
Estimates were derived from data collected at study clinics and local hospitals.
TST = tuberculin skin test; QGIT = QuantiFERON®-TB Gold In-Tube; IPT = isoniazid preventive therapy; DILI = drug-induced liver injury; TB = tuberculosis.