Table 1 Univariate logistic regression analysis of 1-year mortality

Age, years

52.50 (42.00–60.00)

50.50 (38.00–58.00)

59.00 (50.00–65.00)

1.050 (1.025–1.076)

<0.001

Female

58 (25.22%)

42 (26.25%)

16 (22.86%)

0.832 (0.430–1.610)

0.586

Mechanism of injury

0.855 (0.632, 1.158)

0.312

 Motor vehicle accident

114 (49.57%)

73 (45.63%)

41 (58.57%)

 Fall

82 (36.65%)

63 (39.38%)

19 (27.14%)

 Strike

7 (3.04%)

5 (3.13%)

2 (2.86%)

 Others

27 (11.74%)

19 (11.88%)

8 (11.43%)

GCS score

6.00 (4.00–8.00)

7.00 (4.00–8.00)

4.50 (3.00–7.00)

0.798 (0.704–0.904)

<0.001

Fg (g/L)

1.86 (1.39–2.27)

1.86 (1.44–2.37)

1.81 (1.23–2.18)

0.769 (0.544–1.087)

0.137

D-dimer (mg/L)

42.56 (18.47–98.10)

37.26 (16.61–76.46)

75.17 (31.41–131.40)

1.009 (1.005–1.014)

<0.001

Coagulopathy

51 (22.17%)

29 (18.13%)

22 (31.43%)

2.070 (1.086–3.947)

0.027

GLU >8.33mmol/L

159 (69.13%)

110 (68.75%)

49 (70.00%)

1.061 (0.576–1.954)

0.85

RBC (man >5.5×10¹²/L or <4.0×10¹²/L, woman >5.0 ×10¹²/L or <3.5×10¹²/L)

56 (24.56%)

40 (25.32%)

16 (22.86%)

0.874 (0.450–1.697)

0.691

N/L ratio

14.55 (8.29–24.57)

14.12 (8.59–22.09)

14.85 (7.38–27.08)

1.008 (0.987–1.030)

0.448

Midline shift >0

97 (42.17%)

73 (45.63%)

24 (34.29%)

0.622 (0.347, 1.114)

0.109

Completely effaced basal cisterns

40 (17.39%)

20 (12.50%)

20 (28.57%)

2.800 (1.392–5.632)

0.004

Subarachnoid hemorrhage (Fisher scales)

2.00 (0.00–3.00)

2.00 (0.50–3.00)

2.00 (0.00–3.00)

0.929 (0.759–1.138)

0.478

Contusion volume (cm³)

15.99 (0.00–40.82)

14.48 (0.00–44.20)

20.13 (0.00–38.01)

0.999 (0.993–1.005)

0.822

Perioperative bleeding >750 mL

178 (77.39%)

118 (73.75%)

60 (85.71%)

2.136 (1.002–4.550)

0.049

Mechanical ventilation

84 (36.52%)

53 (33.13%)

31 (44.29%)

1.605 (0.903–2.852)

0.107

Tracheotomy

102 (44.35%)

70 (43.75%)

32 (45.71%)

1.083 (0.616–1.904)

0.783

Deep venous thrombosis

22 (9.57%)

15 (9.38%)

7 (10.00%)

1.074 (0.418–2.762)

0.882

Use of noradrenaline to treat hypotension

39 (16.96%)

21 (13.13%)

18 (25.71%)

2.291 (1.131–4.640)

0.021