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Table 3 Performance of the Xpert MTB/RIF assay in the detection of rifampin resistance

From: Performance evaluation of the Xpert MTB/RIF assay according to its clinical application

Rifampin resistance

Performance of the Xpert MTB/RIF assay

Sensitivity

Specificity

PPV

NPV

Total (n =98)

    

No./Total no.% (95% CI)

6/7

90/91

6/7

90/91

85.7 (42.0-99.2)

98.9 (93.2-99.9)

85.7 (42.0-99.2)

98.9 (93.2-99.9)

  1. Abbreviations: CI, confidence interval; NPV, negative predictive value; PPV, positive predictive value.