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Table 4 Agreement between the results of tuberculin skin testing and presence of erythema with those for the Quantiferon-TB Gold in-tube assay

From: Value of the tuberculin skin testing and of an interferon-gamma release assay in haemodialysis patients after exposure to M. tuberculosis

 

TST/Erythema

   

TST (−) Erythema (−)

TST (+) or erythema (+)

Total

QFT

negative

n

29

5

34

  

%

55.8%

9.6%

65.4%

positive

n

3

15

18

 

%

5.8%

28.8%

34.6%

total

n

32

20

52

 

%

61.5%

38.5%

100`

kappa value

0.67

  1. TST: Tuberculin Skin Test.
  2. QFT: Quantiferon®-TB Gold in-Tube assay.
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BMC Infectious Diseases

ISSN: 1471-2334

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