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| AFB smear grade | |||||
|---|---|---|---|---|---|
| Xpert result (Ct range) | Negative | Scanty | 1+ | 2+ | Total (N) |
| Very low (28<Ct≤38) | 76% (35) | 24%(11) | 0 | 0 | 46 |
| Low (22<Ct≤ 28) | 71%(27) | 5.3%(2) | 23.7%(9) | 0 | 38 |
| Medium (16<Ct ≤ 22) | 0 | 0 | 50.0% (1) | 50.%(1) | 2 |
| High (Ct ≤ 16) | 0 | 0 | 0 | 0 | 0 |
AFB = acid-fast bacilli; Ct = cycle threshold
