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Table 2 Sensitivity and specificity of PCR test compared to CSF culture.

From: Evaluation of the IS6110 PCR assay for the rapid diagnosis of tuberculous meningitis

Test Result

Final Diagnosis

Sensitivity

Specificity

PPV

NPV

PCR

TBM (N = 51)

Non TBM (N = 29)

    

Positive

42

07

82.4%

75.9%

85.7%

71%

Negative

09

22

    

Culture

      

Positive

35

06

68.6%

79.3%

85.3%

79.3%

Negative

16

23

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