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Table 3 Performance of GenoType® MTBDRplus assay in detection of RIF, INH and MDR resistance in sputum specimens (N = 149)

From: Performance of the Genotype® MTBDRPlus resistance patternSamara, Russian Federation

 

RIF

INH

MDR

Fully sensitive

Sensitivity (%)

96.2

97.4

97.1

88.2

Specificity (%)

90.7

83.3

88.9

97.4

PPV (%)

96.2

94.8

95.3

90.0

NPV (%)

90.7

90.9

93.0

96.6

  1. All rates were calculated vs phenotypic results (BACTEC MGIT)
  2. NPV – Negative predictive value
  3. PPV – Positive predictive value