Table 2.
Root mean square error (RMSE) and mean absolute prediction error (MAPE) results obtained for the 5 models run in the full sample of 525,620 patients
| Model | RMSE | MAPE | ||||
| Estimate | 95% Conf. | Int.* | Estimate | 95% Conf. | Int.* | |
| Normal with Identity link (OLS) | 10,397 | 10,130 | 10,657 | 2,997 | 2,941 | 3,052 |
| Log Normal | 13,974 | 13,585 | 14,352 | 2,801 | 2,759 | 2,840 |
| Sqrt Normal | 9,860 | 9,644 | 10,070 | 2,554 | 2,514 | 2,592 |
| Gamma with log link | 21,374 | 20,246 | 22,552 | 3,324 | 3,249 | 3,395 |
| Gamma with square-root link | 10,434 | 10,193 | 10,708 | 2,797 | 2,744 | 2,859 |
* Bias-corrected bootstrap confidence interval