Table 3.
Time intervals for each phase of care by prehospital treatment model
| Road paramedics (n = 505) | HIRT HEMS (n = 336) | GSA HEMS (n = 48) | p-value | |
|---|---|---|---|---|
| Time to team arrival at patient from FKS (mins) | 10 (7–14) | 18 (16–21) | 39 (33–48) | <0.001,*§ ¥ |
| Total scene time (mins) | 17 (12–26) | 25 (18–35) | 56 (43–69) | <0.001,*§ ¥ |
| Transport time (mins) | 16 (10–23) | 15 (11–20) | 17 (13–25) | 0.04,§ ¥ |
| Total prehospital time (mins) | 46 (34–58) | 53 (41–58) | 92 (79–116) | <0.001,*§ ¥ |
| Time from ED arrival to CT scan (mins) | 70 (45–116) | 59 (39–95) | 74 (49–106) | <0.001,*§ ¥ |
| Time from FKS to CT scan (hours) | 2.0 (1.5-2.9) | 1.9 (1.6-2.6) | 3.0 (2.3-3.8) | <0.001,§ ¥ |
Statistics reported as median (IQR). FKS, First Key Stroke of emergency call into computerised dispatch system. ED, Emergency Department. CT, Computerised Tomography.
*indicates difference between Road Paramedics and HIRT HEMS at <0.05 level.
§indicates difference between Road paramedics and GSA HEMS at <0.05 level.
¥indicates difference between HIRT HEMS and GSA HEMS at <0.05 level.