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. 2014 Sep 15;9(9):e107595. doi: 10.1371/journal.pone.0107595

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.