Table 2. Comparison of Xpert MTB/RIF method with sputum culture.
Xpert MTB/RIF results by MGIT status of corresponding sputum specimen | |||
MTB positive | NTM positive but MTB negative | Negative for NTM and MTB | |
Xpert MTB/RIF positive | 94 | 3 | 7 |
Xpert MTB/RIF negative | 29 | 16 | 275 |
Xpert MTB/RIF results by LJ status of corresponding sputum specimen | |||
Xpert MTB/RIF positive | 89 | 1 | 14 |
Xpert MTB/RIF negative | 15 | 2 | 303 |
Key: LJ = Lowenstein Jensen, MGIT = Mycobacterial Growth Indicator Tube, Xpert = Xpert MTB/RIF test, NTM = Non Tuberculous Mycobacteria.