TABLE 2

Sample Size Distribution, Optimal Cutoff Values, and Discrimination Parameters Obtained During Application of Automatic Iterative Process to Cohort 1

ParameterIteration 0Iteration 1Iteration 2Iteration 3Iteration 4
Cutoff value1.201.271.261.251.24
NH145149142141141
NL131127134135135
Acc-WC0.9850.9600.9490.9450.949
Spec-WC0.9920.9460.9620.9620.962
Sens-WC0.9790.9720.9370.9310.938
Acc-Iter0.9600.9750.9961.000
Spec-Iter0.9461.0001.0001.000
Sens-Iter0.9720.9530.9921.000
  • At each iteration, accuracy, specificity, and sensitivity were calculated with respect to initial classification at iteration 0 (Acc-WC, Spec-WC, and Sens-WC) and with respect to preceding iteration (Acc-Iter, Spec-Iter, and Sens-Iter). NH = number of subjects in AβH group; NL = number of subjects in AβL group.