Table 3 Comparison of detection of M. tuberculosis complex with immunohistochemistry and with PCR

From: Immunohistochemistry using a Mycobacterium tuberculosis complex specific antibody for improved diagnosis of tuberculous lymphadenitis

Anti-MPT64

PCR

 

Positive

Negative

Norwegian cases

  

 Positive

17

2

 Negative

0

1

Tanzanian cases

  

 Positive

14

2

 Negative

2

17

Positive controls

  

 Positive

4

0

 Negative

0

0

Negative controls

  

 Positive

1

2

 Negative

2

11

Total

40

35

  1. The observed agreement between the two tests was 87%, with κ of 0.73.
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