Table 2.
Model Performance Characteristics for Predicting One-Year Mortality Post-AMI
| Models | |||||
|---|---|---|---|---|---|
| Year* | Core | Charlson | DCG | CCSPR | |
| Number of parameters fit** | 9 | 25 | 122 | 263 | |
| C-Statistics | |||||
| Fitting | 1995 | 0.65 | 0.73 | 0.80 | 0.81 |
| Validation | 1999 | 0.66 | 0.74 | 0.81 | 0.82 |
| Mean actual mortality % within deciles of model-defined risk | |||||
| Highest decile | 1995 | 53 | 64 | 75 | 79 |
| Lowest decile | 1995 | 16 | 8 | 4 | 4 |
| Highest decile | 1999 | 57 | 67 | 76 | 80 |
| Lowest decile | 1999 | 17 | 7 | 3 | 3 |
*
Models are fit to 1995 data and applied to (validated on) 1999 data.
**
Theoretical maximums based on using all classifications in each system are 9, 26, 127, and 266, respectively.