Table 1 Patient demographics and clinical data

N

145

6875

Age, median (IQR)

39.0 (26.0, 53.0)

44.0 (29.0, 61.0)

0.023

Gender

Male

112 (77.2%)

4760 (69.2%)

0.040

Female

33 (22.8%)

2115 (30.8%)

0.040

Type of injury

Blunt

84 (57.9%)

5927/6874 (86.2%)

< 0.001

Penetrating

61 (42.1%)

947/6874 (13.8%)

< 0.001

Prehospital cardiac arrest

6/144 (4.2%)

158/6059 (2.6%)

0.25

Prehospital GCS, median (IQR)

15 (12, 15)

15 (14, 15)

0.032

ED GSC, median (IQR)

15 (14, 15)

15 (15)

0.002

Prehospital SBP, median (IQR)

113 (95, 130)

130 (120, 150)

< 0.001

ED SBP, median (IQR)

120 (95, 140)

138 (123, 154)

< 0.001

Prehospital RR, median (IQR)

20 (18, 28)

18 (16, 22)

< 0.001

ED RR, median (IQR)

20 (17, 25)

18 (15, 20)

< 0.001

Prehospital Airway management

32/144 (22.2%)

390/6062 (6.4%)

< 0.001

ED intubation

61/144 (42.4%)

458/6873 (6.7%)

< 0.001

Prehospital transport

Ground ambulance

107 (73.8%)

5027/6272 (80.1%)

0.06

Helicopter ambulance

37 (25.5%)

1035/6272 (16.5%)

0.004

Private/public vehicle

0 (0.0%)

48/6272 (0.8%)

NA

Walk-in

0 (0.0%)

102/6272 (1.6%)

NA

Police

0 (0.0%)

25/6272 (0.4%)

NA

Other

1 (0.7%)

35/6272(0.6%)

0.83

ISS, median (IQR)

22 (13, 34)

6 (1, 14)

< 0.001

NISS, median (IQR)

27 (18, 41)

9 (3, 20)

< 0.001

ED BE, median (IQR)

-4.20 (-7.20, -1.90)

0.60 (-1.80, 2.00)

< 0.001

ED INR, median (IQR)

1.10 (1.00, 1.20)

1.00 (1.00, 1.10)

< 0.001