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

Table 5 Time intervals for physician treated patients after December 2007

	HIRT HEMS	GSA HEMS	P value
Combined tasking & mobilisation time (mins)	7 (6–8), n = 336	17 (13–24), n = 46	<0.001
Physician team scene time (mins) for all patients treated	18 (10–28), n = 328	32 (25–46), n = 43	<0.001
Subgroup of patients not trapped at the time of physician team contact with the patient
Physician team scene time (mins)	13 (9–21), n = 110	31 (23–46), n = 30	<0.001
Physician team scene time (mins) for patients requiring prehospital intubation	16 (10–23), n = 54	34 (25–51), n = 16	<0.001

All values reported as medians (IQR). “Physician team scene time for all patients treated” is less than the “Duration total scene time” in Table 3 as a road ambulance team was usually the first to arrive on the scene with the physician team arriving subsequently.

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