Skip to main content

Table 3 Concordance between the three diagnostic tests described in all subjects, HIV seropositive subjects and HIV seronegative subjects

From: Diagnosis of latent tuberculosis infection among HIV discordant partners using interferon gamma release assays

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

  1. TST: Tuberculin Skin Test
  2. QFT: Quantiferon-TB Gold In Tube Test
  3. TSPOT: TSPOT.TB Test
  4. HIV: Human Immunodeficiency Virus