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Table 3 Time intervals for each phase of care by prehospital treatment model

From: Prehospital response model and time to CT scan in blunt trauma patients; an exploratory analysis of data from the head injury retrieval trial

 

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,§ ¥

  1. Statistics reported as median (IQR). FKS, First Key Stroke of emergency call into computerised dispatch system. ED, Emergency Department. CT, Computerised Tomography.
  2. *indicates difference between Road Paramedics and HIRT HEMS at <0.05 level.
  3. §indicates difference between Road paramedics and GSA HEMS at <0.05 level.
  4. ¥indicates difference between HIRT HEMS and GSA HEMS at <0.05 level.