Table 2

Summary statistics for IFN-γ levels in 15 laboratory and 6 ward HCWs who showed transient conversions of the QuantiFERON-TB Gold In-Tube test between 11 May and 30 June 2010a

Test seriesNo. of samplesIFN-γ level (IU/ml)
Mean95% CI lower limit95% CI upper limitSDMedianMinimumMaximum
Laboratory HCWs
    A450.02−0.110.140.030.000.000.15
    B231.431.261.601.220.960.355.27
    C150.02−0.190.230.040.000.000.15
    D150.01−0.200.230.030.000.000.12
Hospital ward HCWs
    A200.02−0.010.050.030.010.000.10
    B60.730.670.790.250.750.431.07
    C60.03−0.030.090.040.010.000.11
    D50.06−0.010.120.070.030.000.17
  • a For an explanation of test series A, B, C, and D, see the Fig. 2 legend.