Table 3

Concordance between the three diagnostic tests described in all subjects, HIV seropositive subjects and HIV seronegative subjects

Test in HIV positive subjects (n = 298)

Agreement (%)

κ

95% Confidence Interval


TST vs QFT

75%

0.53

0.43, 0.64

TST vs TSPOT

76%

0.4

0.3, 0.52

TSPOT vs QFT

74%

0.37

0.26, 0.49

Test in HIV negative subjects (n = 298)

Agreement (%)

κ

95% Confidence Interval

TST vs QFT

72%

0.44

0.33, 0.55

TST vs TSPOT

70%

0.3

0.2, 0.4

TSPOT vs QFT

75%

0.46

0.35, 0.57


TST: Tuberculin Skin Test

QFT: Quantiferon-TB Gold In Tube Test

TSPOT: TSPOT.TB Test

HIV: Human Immunodeficiency Virus

Talati et al. BMC Infectious Diseases 2011 11:264   doi:10.1186/1471-2334-11-264

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