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Table 1 Clinical and demographic characteristics of study subjects.

From: Host markers in Quantiferon supernatants differentiate active TB from latent TB infection: preliminary report

 

All

Pulmonary TB

Household contacts

Number of participants

57

23

34

Age, mean yr ± SD

31.2 ± 13.9

30.3 ± 13.6

31.8 ± 14.2

Age range, yr

10.1 – 59.9

10.1 – 57.4

10.7 – 59.9

Male/female ratio

31/26

17/6

14/20

TST mean, mm

na

nd

22.8

TST range, mm

na

na

0.0–46.0

TST pos*, %

na

na

87.5

QFT pos, %

82.5

95.6

73.5

  1. QFT = QuantiFERON TB Gold In Tube, TB = active tuberculosis, TST = tuberculin skin test, yr = years, SD = standard deviation, na = not applicable, nd = not done, * = Two household contacts did not return for TST reading.
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BMC Pulmonary Medicine

ISSN: 1471-2466

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