Table 1 Demographic data, injury severities and injury patterns for the two patient groups. Mean and upper and lower limits of the 95% confidence intervals (CI) are given. Where appropiate, the median as well as the interquartile range (IQR) are given too

 Male patients [%]

mean (95% CI)

73.5 [72.2–74.7]

73.0% [71.9–73.8]

 Patient age [years]

mean (95% CI)

median (IQR)

43.0 [42.5–43.6]

41 (25–59)

45.7 [45.2–46.1]

45 (26–62)

 Patients with blunt trauma [%]

mean (95% CI)

94.8 [94.2–95.2]

94.5 [94.2–95.0]

 GCS

mean (95% CI)

median (IQR)

11.0 [10.8–11.1]

14 (7–15)

11.1 [11.0–11.2]

14 (8–15)

 Systolic blood pressure [mmHg]

mean (95% CI)

median (IQR)

119.9 [119.0–120.9]

120 (100–140)

121.2 [120.5–122.0]

120 (100–140)

 SpO₂ [%]

mean (95% CI)

median (IQR)

92.5 [92.2–92.9]

96 (92–98)

92.7 [92.4–93.0]

96 (92–98)

 Patients with a GCS ≤ 8 [%]

mean (95% CI)

30.3 [29.0–31.6]

28.9 [28.0–29.6]

 Patients with a systolic blood pressure ≤ 90 mmHg [%]

mean (95% CI)

18.2 [17.2–19.4]

17.9 [17.0–18.7]

 RISC II (predicted mortality) [%]

17.6

17.3

 Patients with an AIS_head ≥ 3 [%]

mean (95% CI)

48.9 [47.5–50.3]

48.7 [47.6–49.8]

 Patients with an AIS_face ≥ 3 [%]

mean (95% CI)

2.4 [2.0–2.9]

4.2 [3.8–4.6]

 Patients with an AIS_thorax ≥ 3 [%]

mean (95% CI)

44.1 [42.8–45.5]

50.0 [48.9–51.0]

 Patients with an AIS_abdomen ≥ 3 [%]

mean (95% CI)

17.5 [16.4–18.5]

15.8 [15.0–16.6]

 Patients with an AIS_extremities ≥ 3 [%]

mean (95% CI)

37.2 [35.9–38.6]

34.0 [33.0–35.0]

 Patients with an AIS_{soft tissues} ≥ 3 [%]

mean (95% CI)

0.9 [0.6–1.1]

2.0 [1.7–2.3]

 Patients without thoracic injuries [%]

mean (95% CI)

45.8 [44.4–47.2]

40.2 [39.2–41.3]

 ISS

mean (95% CI)

median (IQR)

23.9 [23.5–24.2]

21 (14–29)

24.5 [24.2–24.7]

22 (14–29)

 NISS

mean (95% CI)

median (IQR)

29.4 [28.9–29.8]^*

25 (17–35)

30.2 [29.9–30.6]^*

27 (17–38)