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Table 2 TST and QFT-Plus results in Iranian pediatric household contacts of TB cases

From: Diagnosis of latent tuberculosis infection among pediatric household contacts of Iranian tuberculosis cases using tuberculin skin test, IFN- γ release assay and IFN-γ-induced protein-10

 

TST+/QFT-

TST−/QFT+

TST+/QFT+

TST−/QFT-

At initiation of screening (n = 230)

18 (7.8%)

37 (16%)

11 (4.8%)

164 (71.3%)

3 months after the diagnosis of index (n = 164)

4 (2.4%)

14 (8.5%)

5 (3.1%)

141 (86%)

12 months after the diagnosis of index (n = 141)

16 (11.3%)

9 (6.4%)

1 (0.7%)

115 (81.5%)

18 months after the diagnosis of index (n = 115)

11 (9.6%)

3 (2.6)

1 (0.9%)

90 (85.8%)

  1. Footnotes: QFT-plus QuantiFERON®-TB Gold Plus, TB tuberculosis, TST tuberculin skin test