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Table 2 Lemeshow–Hosmer goodness-of-fit C-statistic for APACHE II in its original and new models

From: External validation of a modified model of Acute Physiology and Chronic Health Evaluation (APACHE) II for orthotopic liver transplant patients

   Observed Predicted by APACHE II original model Predicted by APACHE II new model
Group N Died Survived Died Survived Died Survived
1 29 0 29 1.28 27.72 0.82 28.18
2 29 0 29 1.87 27.13 1.20 27.80
3 29 1 28 2.52 26.48 1.64 27.36
4 29 2 27 3.41 25.59 2.25 26.75
5 29 0 29 4.64 24.36 3.10 25.90
6 29 7 22 8.84 20.16 6.45 22.55
C-statistic     11.06 (df = 4) 5.92 (df = 4)
P value     0.03 0.20
  1. df, degrees of freedom.