| Variables | Observations | Mean | Std. Dev. | Min | Max |
| DRGs | 653 | 11.741 | 6.221 | 1 | 24 |
| Cost | 653 | 2,614.049 | 4,606.065 | 136 | 55,695 |
| ClinSev | 653 | 2.283 | 0.788 | 1 | 3 |
| EconComp | 653 | 2.696 | 4.080 | 0.14 | 55.639 |
| ALS | 653 | 7.832 | 8.348 | 1 | 85 |