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Table 3 The comparison of detection indexes by 7 TB antibody test kits (%)

From: Diagnostic performance and problem analysis of commercial tuberculosis antibody detection kits in China

Detection index

Kit A

Kit B

Kit C

Kit D

Kit E

Kit F

Kit G

Sensitivity

50.0*

83.9

38.7*

9.7*

48.4*

69.4

79.0

Specificity

73.2#

25.0#

85.7

96.4

78.6

78.6

50.0#

Positive predictive value

67.4

55.3

75.0

75.0

71.4

78.2

63.6

Negative predictive value

56.9

58.3

55.8

49.1

57.9

69.8

68.3

Consistent rate

61.0

55.9

61.0

50.8

62.7

73.7#

65.3

  1. *P < 0.05 compared with kit B; #P < 0.05 compared with kit D