Table 3

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

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


All rates were calculated vs phenotypic results (BACTEC MGIT)

NPV – Negative predictive value

PPV – Positive predictive value

Nikolayevskyy et al. BMC Clinical Pathology 2009 9:2   doi:10.1186/1472-6890-9-2

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