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Table 5 Performance and Validation of Prediction Models

From: Prognostic value of coagulation tests for in-hospital mortality in patients with traumatic brain injury

  In-hospital Mortality C Statistic (95%CI) Pa
Development(n = 1643)
 Model A 0.882 (0.855–0.909) 0.925
 Model B 0.893 (0.865–0.920) 0.240
Internal Validationb
 Model A 0.878 (0.851–0.905)
 Model B 0.890 (0.862–0.917)
External Validation(n = 676)
 Model A 0.868 (0.816–0.921) 0.046
 Model B 0.875 (0.824–0.927) 0.152
  1. aH-L tests
  2. bInternal validation with 200 bootstrap re-samples using Harrell’s validation function