ED physician provider environments
| ED size | Practitioners (%) | Volume (annual patient visits) | Representative type | Physician coverage |
| Small | 15.7 | <15 000 |
| Single |
| Medium | 35.6 | 15 001–30 000 |
| Double |
| Moderate | 29.3 | 30 001–45 000 |
| Triple |
| Large | 19.4 | >45 001 |
| Quadruple |
ED, emergency department.