Table 1 Characteristics of the patients at baseline

Male, n (%)

95 (75.4)

105 (76.1)

Age (years)

38.5 ± 7.6

37.9 ± 8.2

APACHE II, median (IQR)

27 (22–33)

23 (17–29)

ISS, median (IQR)

14 (12–16)

13 (12–15)

Type of injury cause, n (%)

 Road traffic accident

66 (52.4)

71 (51.4)

 Falling injury

31 (24.6)

39 (28.3)

 Crush injury

20 (15.9)

19 (13.8)

 Explosive injury

9 (7.1)

9 (6.5)

Time from acute onset to EICU admission, hours, median (IQR)

8 (2–31)

7 (2–24)

Shock, n (%)

90 (71.4)

94 (68.1)

ARDS severity^a (by PaO₂/FiO₂, n (%))

 Mild (200–300)

7 (5.6)

8 (5.8)

 Moderate (100–200)

86 (68.3)

112 (81.2)

 Severe (<100)

33 (26.2)

18 (13.0)

Hemoglobin (g/L)

85 (62–109)

87 (65–107)