Validation of the nomogram
| Variables | Derivation set | Validation set |
| NRI (95% CI) | ||
| SOFA and nomogram | 0.539 (0.478 to 0.618) | 0.267 (0.036 to 0.212) |
| GWTGHF and nomogram | 0.601 (0.552 to 0.651) | 0.380 (0.321 to 0.418) |
| APSIII and nomogram | 0.142 (0.085 to 0.215) | 0.429 (0.387 to 0.498) |
| IDI (95% CI） | ||
| SOFA and nomogram | 0.142 (0.131 to 0.153) | 0.055 (0.046 to 0.063) |
| GWTGHF and nomogram | 0.176 (0.165 to 0.187) | 0.078 (0.070 to 0.086) |
| APSIII and nomogram | 0.032 (0.019 to 0.045) | 0.075 (0.068 to 0.081) |
APSIII, Acute Physiology Score III; GWTGHF, Get With The Guidelines Heart Failure; IDI, integrated discrimination improvement; NRI, net reclassification improvement; SOFA, Sequential Organ Failure Assessment.