Table 1 Patient and injury descriptors of patients with penetrating torso injuries attended by AAKSS during a 6-year period stratified by the need for HEMS specific interventions

TOTAL [n,%]

363

54 [14.9]

309 [85.1]

 Male [n, %]

326 [89.8]]

43 [13.2]

283 [86.8]

.349

 Age [median, IQR]

30 [23–42]

30 [21–44]

31 [23–42]

.531

  < =16 [n,%]

11 [3.0]

2 [18.2]

9 [81.8]

.272

 17–25 [n,%]

114 [31.4]

15 [13.2]

99 [86.8]

.336

 26–45 [n,%]

164 [45.2]

19 [11.6]

145 [88.4]

.100

 46–65 [n,%]

60 [16.5]

13 [16.7]

47 [78.3]

1.00

  > 65 [n,%]

14 [3.9]

5 [35.7]

9 [64.3]

.132

 Daytime [0700–1900] [n,%]

155

29 [18.7]

126 [81.3]

.009

 Night-time [1900–0700] [n,%]

208

25 [12.0]

183 [88.0]

.009

 999-scene [hours:mins]

00:39

00:37

00:39

.583

 999-hospital (hours:mins)

01:30

01:47:00

01:29:00

.283

 GCS [median]

15

4

15

 14–15

301 [82.9]

20 [6.6]

281 [93.4]

<.001

 9–13

12 [3.3]

5 [41.7]

7 [58.3]

<.001

 3–8

35 [9.6]

28 [80.0]

7 [20.0]

<.001

 TCA [n,%]

34 [9.4]

27 [79.4]

7 [20.6]

<.001

 Hypotension (SBP < 80 mmHg) [n,%]

30 [8.3]

16 [53.3]

14 [46.7]

<.001

 Tachycardia (HR > 100 BPM) [n,%]

111 [30.6]

17 [15.3]

94 [84.7]

<.001

 SpO2 < 92% [n,%]

30 [8.3]

12 [40.0]

18 [60.0]

<.001

  RR > 30 [n,%]

32 [8.8]

10 [31.25]

22 [68.75]

<.001

 Lactate (mmol/l [n,%])

26 [7.2]

4 [15.4]

22 [84.6]

.907