Table 1.
Positivity of sputum samples analyzed by LED-FM, cZN, Xpert and LJ culture singly and in combination. PPV: positive predictive value, NPV: negative predictive value, CI: confidence interval, AIDS: acquired immunodeficiency syndrome, HIV: human immunodeficiency virus
| LED-FM (n = 362) | Xpert (n = 362) | cZN (n = 362) | LJ culture (n = 332) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| positive | negative | positive | negative | positive | negative | positive | negative | ||
| LED-FM | positive (36) | 36 | 0 | 36 | 0 | 35 | 0 | ||
| negative | 14 | 312 | 6 | 320 | 10 | 287 | |||
| Xpert | positive(50) | 36 | 14 | 42 | 8 | 42 | 6 | ||
| negative | 0 | 312 | 0 | 312 | 3 | 281 | |||
| cZN | positive (42) | 36 | 6 | 42 | 0 | 37 | 3 | ||
| negative | 0 | 320 | 8 | 312 | 8 | 284 | |||
| LJ culture | positive | 35 | 10 | 42 | 3 | 37 | 8 | ||
| negative | 0 | 287 | 6 | 281 | 3 | 284 | |||