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Table 2 Confusion matrices for comparison of binomial proportions between the two diagnostic tests

From: Diagnostic accuracy of pattern differentiation algorithm based on Chinese medicine theory: a stochastic simulation study

  TN (no single pattern simulated)   TP (single pattern simulated)
Test 1 - + Test 1 + -
Test 2 - A B Test 2 + a b
  + C D   - c d
  1. TN: true negative, TP: true positive
  2. (+) and (-) indicate positive and negative test results respectively.
  3. B is the number of TN cases classified correctly by test 2 and falsely by test 1 and conversely for C cases and analogously for the TP group.