Table 1.
Modelling inputs, assumptions and ranges for passive, enhanced and active contact investigation (CI)
| Interventions | Total cost (US$) |
Index patient with TB | Total contacts diagnosed with TB (lower and upper limit) |
Cost per index TB patient family screened (US$) |
Probability of finding a patient with TB per household screened (lower and upper limit) |
| Passive CI | US$10 659 | 231 | 21 (17–25) | 46 (37-55) | 0.09 (0.07–0.10) |
| Passive +enhanced CI | US$19 597 | 300 | 102 (82–122) | 76 (61–91) | 0.34 (0.27–0.40) |
| Passive +enhanced + active CI | US$32 282 | 300 | 155 (124–186) | 118 (94–142) | 0.52 (0.41–0.62) |
TB, tuberculosis.