| Initial | Follow up | ||
| Emergency Department Type | Academic | 48 | 43 |
| Community | 67 | 64 | |
| Emergency Department Location | Urban | 46 | 50 |
| Suburban | 58 | 46 | |
| Rural | 11 | 11 | |
| Emergency Department Volume | <10,000 | 3 | 0 |
| 10,001 - 20,000 | 1 | 3 | |
| 20,001 - 30,000 | 19 | 12 | |
| 30,001 - 40,000 | 15 | 15 | |
| 40,001 - 50,000 | 10 | 16 | |
| 50,001 - 60,000 | 16 | 8 | |
| 60,001 - 70,000 | 18 | 11 | |
| 70,001 - 80,000 | 11 | 16 | |
| 80,001 - 90,000 | 4 | 4 | |
| 90,001 - 100,000 | 6 | 4 | |
| >100,000 | 12 | 18 |