Table 2

Results of T-Spot.TB testing and Quantiferon-TB Gold In-Tube (QFG-IT) testing for the case cohort, definite cohort and those with tuberculin skin test (TST)>15 mm

TotalNo testedPositive (proportion)Negative (proportion)Test failure (proportion)Indeterminate (proportion)
T-Spot.TB testing
 Case cohort19510347 (0.46)47 (0.46)9 (0.09)
 Definite cohort492718 (0.66)8 (0.3)1 (0.04)
 TST >15 mm1085034 (0.68)15 (0.3)1 (0.02)
QFG-IT testing
 Case cohort195170101 (0.59)56 (0.32)13 (0.08)
 Definite cohort494636 (0.78)6 (0.13)4 (0.09)
 TST >15 mm1089779 (0.81)15 (0.15)3 (0.03)