Demographic details of interview participants
| Professional group | N | Mean no of years of postgraduate experience (SD) |
| Paramedic | 10 | |
| Mobile Intensive Care Ambulance | 6 | 21.5 (8.2) |
| Team manager | 4 | 20.7 (9.6) |
| Flight paramedic | 2 | 23 (7.1) |
| Road car | 4 | 7.5 (7.6) |
| Team manager | 1 | 8 |
| Road car paramedic | 3 | 7.3 (9.3) |
| Trauma team | ||
| Medical | 12 | 11.4 (9.0) |
| Consultant | 7 | 15.9 (9.5) |
| Registrar | 5 | 5.2 (2.2) |
| Nursing | 5 | 5.8 (3.3) |
| Clinical nurse specialist | 3 | 6.3 (2.1) |
| Registered nurse | 2 | 5 (5.6) |