| Vignette group | Combination of cause, distance, and crowding |
|---|---|
| 1 | Trauma condition, short distance, no crowding |
| 2 | Trauma condition, short distance, crowding |
| 3 | Trauma condition, long distance, no crowding |
| 4 | Trauma condition, long distance, crowding |
| 5 | Medical condition, short distance, no crowding |
| 6 | Medical condition, short distance, crowding |
| 7 | Medical condition, long distance, no crowding |
| 8 | Medical condition, long distance, crowding |