TABLE 3.
Summary of MB results
| Group | Phenotypic results
|
Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | |
|---|---|---|---|---|---|---|
| No. resistant | No. susceptible | |||||
| INH | ||||||
| Mutations detected | 105 | 0 | 82.67 | 100 | 100 | 98.11a |
| No mutations detected | 22 | 69 | ||||
| RIF | ||||||
| Mutations detected | 79 | 0 | 97.53 | 100 | 100 | 99.95b |
| No mutations detected | 2 | 69 | ||||
Calculated for a prevalence of 10% INH resistance.
Calculated for a prevalence of 2% RIF resistance.