| LOS | Length of stay |
| MLR | Multiple linear regression |
| AMI | Acute myocardial infarction (AMI) |
| CHF | Congestive heart failure |
| CeVD | Cerebrovascular disease |
| PVD | Peripheral vascular disease |
| COPD | Chronic obstructive pulmonary disease |
| RD | Renal disease |
| RF | Random forest |
| SVM | Support vector machine |
| NNN | Narrow neural network |
| GPR | Gaussian process regression |