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Table 1 The sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) and 95% confidence intervals of the GenoType® MTBDRplus assay on 111 M. tuberculosis cultures isolates in the South of Vietnam.

From: Validation of the GenoType®MTBDRplus assay for diagnosis of multidrug resistant tuberculosis in South Vietnam

  Rifampicin Isoniazid Multi drug resistance
Sensitivity 93.1% (83.3-98.1) 92.6% (82.1-97.9) 88.9% (77.4-95.8)
Specificity 100% (93.2-100) 100% (93.6-100) 100% (93.6-100)
PPV 100% (93.4-100) 100% (92.9-100) 100% (92.6-100)
NPV 92.9% (82.7-98.0) 93.3% (83.8-98.1) 90.3% (80.1-96.4)