Table 5.
Predicting an individual’s MDR-TB risk among individuals with CPTBT.
| Risk factor | Value | Points |
|---|---|---|
| Age < 60 years | Yes | 12.5 |
| A history of direct contact | Yes | 100 |
| Passive mode of TB case finding | No | 0 |
| HIV infection | No | 0 |
| Completing re-treated TB treatment | Yes | 4.0 |
| Unsuccessful treatment | Yes | 52.0 |
| 3HRZES/6HRE | Yes | 18.0 |
| Excellent FCXE | Yes | 0 |
| Duration of pulmonary cavities, months | 3 | 12.0 |
| Duration of positive sputum culture, months | 2 | 24.0 |
| Total points | 222.5 | |
| Estimate of MDR-TB risk (%) | ||
| 1-year probability of incident MDR-TB | 71.5 | |
| 5-year probability of incident MDR-TB | 83.5 | |
| 10-year probability of incident MDR-TB | 93.5 | |
TB: tuberculosis; MDR-TB: multidrug-resistant tuberculosis; CPTBT: completing pulmonary TB treatment; HIV: human immunodeficiency virus; FCXE: frequencies of chest X-ray examination; H: isoniazid; R: rifampicin; Z: pyrazinamide; E: ethambutol; S: streptomycin.