Helicopter emergency medical services demonstrate reduced time to emergency anaesthesia in an undifferentiated trauma population: a retrospective observational analysis across three major trauma networks

Table 3 Time interval descriptors (minutes) for patients receiving a PHRSI or EDRSI

	All patients (n = 209)	EDRSI (n = 106)	PHRSI (n = 103)	p value
Pre-hospital time intervals
Emergency call to RSI (min, median [IQR])	72 [57–98]	84 [68–113]	64 [51–75]	< .001
Arrival at destination hospital to RSI, or arrival of HEMS team to perform RSI (min, median [IQR])	22 [10–31]	18 [6–29]	25 [17–41]	< .001
Conveyance interval (min, median [IQR]	32 [19–44]	18 [12–29]	40 [32–51]	< .001
Total pre-hospital time (min, median [IQR])	98 [63–122]	64 [52–85]	115 [101–141]	< .001
In-hospital time intervals
ED admission to CT scan (min, median [IQR]) Missing (n)	30 [18–45] 10	43 [32–53] 6	21 [15–30] 4	< .001
Emergency call to CT scan (min, median [IQR])	119 [101–146]	107 [87–129]	132 [114–166]	< .001

Categorical data are reported as frequency (n) and percentage (%) and numerical data as median (Interquartile range, IQR) or mean (Standard Deviation, SD). ED Emergency Department, CT Computed Tomography, RSI Rapid Sequence Induction, HEMS Helicopter Emergency Medical Service. Total pre-hospital time, time from call to emergency services to arrival in hospital; Arrival of service to RSI, time from arrival of an RSI capable team to the patient until the patient undergoes RSI; Time from admission to CT scan, the time from arriving in ED to undergoing a CT scan

ISSN: 1757-7241