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Table 3 Area under the receiver operating characteristic curves of each predictive score in all patients and various subgroups

From: Simultaneous external validation of various cardiac arrest prognostic scores: a single-center retrospective study

Predictive scores Number of patients Area under the curve (95% confidence interval)
All patients, n = 189   
 NULL-PLEASE score 189 0.874 (0.807–0.942)
 CAST score 173 0.860 (0.777–0.944)
 rCAST score 189 0.770 (0.659–0.880)
Patients with by-stander witnessed out-of-hospital cardiac arrest, n = 127   
 NULL-PLEASE score 127 0.873 (0.793–0.952)
 CAST score 115 0.805 (0.606–0.914)
 rCAST score 127 0.728 (0.604–0.851)*
 CAHP score 110 0.829 (0.718–0.940)
 OHCA score 125 0.847 (0.773–0.921)
Patients in whom therapeutic hypothermia was induced, n = 100   
 NULL-PLEASE score 100 0.893 (0.809–0.978)
 CAST score 96 0.913 (0.832–0.994)
 rCAST score 100 0.925 (0.860–0.989)
 CAHP score 73 0.821 (0.667–0.974)
 OHCA score 66 0.865 (0.755–0.976)
Patients in whom therapeutic hypothermia was not induced, n = 89   
 NULL-PLEASE score 89 0.853 (0.740–0.965)
 CAST score 77 0.797 (0.638–0.955)
 rCAST score 89 0.599 (0.407–0.792) **
 CAHP score 66 0.868 (0.771–0.965)
 OHCA score 74 0.831 (0.736–0.926)
Patients in whom veno-arterial extracorporeal membrane oxygenation was not performed, n = 165   
 NULL-PLEASE score 165 0.879 (0.807–0.951)
 CAST score 150 0.894 (0.801–0.986)
 rCAST score 165 0.753 (0.617–0.889)
 CAHP score 122 0.869 (0.776–0.962)
 OHCA score 138 0.857 (0.784–0.929)
Patients with age ≤ 65, n = 73   
 NULL-PLEASE score 73 0.902 (0.809–0.995)
 CAST score 65 0.923 (0.845–1.000)
 rCAST score 73 0.948 (0.896–1.000)
 CAHP score 49 0.879 (0.763–0.995)
 OHCA score 42 0.946 (0.879–1.000)
  1. There was no significant difference between the scores in all subgroups
  2. *p < 0.05 compared with the rCAST score in patients with therapeutic hypothermia
  3. **p < 0.01 compared with the rCAST score in patients with therapeutic hypothermia