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Effect of CPC pretreatment on the performance of Xpert MTB/RIF
| Culture grading (WHO) | Xpert-positive | Xpert-negative |
|---|---|---|
| n | ||
| Contaminated | 3 | 0 |
| Negative | 4 | 2 |
| Positive | 90 | 1 |
| < 20 colonies | 5 | 0 |
| 1+ | 14 | 0 |
| 2+ | 30 | 0 |
| 3+ | 41 | 1 |
| Total | 97 | 3 |
Xpert tests results of 100 samples treated with CPC
