Table 4 Performance and internal validation of the CHAMP algorithm along with the results of a sensitivity analysis without cardiac arrest patients
Metric | Algorithm performance | Validation performance | Sensitivity analysis | ||||||
|---|---|---|---|---|---|---|---|---|---|
Estimate | 95% CI | Optimism | 95% CI | Estimate | 95% CI | ||||
Lower | Upper | Lower | Upper | Lower | Upper | ||||
AUROC | 0.932 | 0.929 | 0.935 | 0.011 | 0.008 | 0.015 | 0.887 | 0.881 | 0.893 |
Brier | 0.091 | 0.089 | 0.093 | -0.006 | -0.008 | -0.003 | 0.088 | 0.086 | 0.091 |
Slope | 1.054 | 1.031 | 1.078 | 0.054 | 0.052 | 0.056 | 1.049 | 1.016 | 1.083 |
Intercept | -0.055 | -0.094 | -0.015 | -0.055 | -0.057 | -0.052 | -0.066 | -0.121 | -0.010 |