TABLE 4

The numbers of subjects with evaluable assays from the two successive visits, the simple proportion of agreement between visits, the κ index of agreement and its 95% CI, and the entropy R2

n*Agreement (%)κ95% CIEntropy R2
Autoantibodies142860.700.58–0.820.40
Cellular immunoblot45820.630.41–0.860.34
U.K.-ELISPOT49550.08−0.20 to 0.360.005
T-cell proliferation63760.520.30–0.730.20
Tetramer50740.410.15–0.680.13
U.S.-ELISPOT29660.25−0.09 to 0.600.055
  • *The number of subjects for whom the laboratory considered the specimen from the two visits to be evaluable.