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Table 2 Two-by-two table for a target population

From: New patient-oriented summary measure of net total gain in certainty for dichotomous diagnostic tests

  

Gold Standard

 
  

S+

S-

Total

Clinical Test

T+

A = True Positive

B = False Positive

A+B

 

T-

C = False Negative

D = True Negative

C+D

  1. 2.1 PPV = P(S+|T+) =
  2. 2.2 NPV = P(S-|T-) =
  3. 2.3 PPR = [29]
  4. 2.4 NPR = [29]
  5. Error terms for the target population:
  6. α p = False Positive Rate = FPR =
  7. β p = False Negative Rate = FNR =
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