TABLE 3.
TST Positive* | TST Negative | Total | |
T-Spot positive | 15 (0.8%) | 19 (1.1%) | 34 (1.9%) |
T-Spot negative | 33 (1.9%) | 1,714 (96.2%)† | 1,747 (98.1%) |
Total | 48 (2.7%) | 1,733 (97.3%) | 1,781 |
Definition of abbreviations: T-Spot = T-SPOT.TB test; TST = tuberculin skin test.
TST positive defined by risk stratified interpretation (30).
Includes 23 subjects with borderline TB response of five spots (11 subjects), six spots (11 subjects), or seven spots (one subject).
% agreement = 97.1%.
Κ (95% confidence interval) = 0.35 (0.22–0.49).