Skip to main content

Table 1 Relationship between criteria for defining a "high-risk" sub-group and whether a patient has an event during a clinical trial.

From: Selecting patients for randomized trials: a systematic approach based on risk group

  

Event?

  

Yes

No

Meet criteria for "high-risk"?

Yes

396

624

 

No

632

3,799

  1. Hypothetical data are given for the purposes of illustration.
  2. Sensitivity = 396 ÷ (396+632) = 39%
  3. Specificity = 3799 ÷ (624+3799) = 86%