|
LT-BI N = 1859
|
Non LT-BI N = 4473
|
P-value
|
---|
Age (year), mean ± SD
|
62 ± 20
|
54 ± 22
|
<0.001*
|
Female, n (%)
|
599 (32)
|
1,272 (28)
|
0.003†
|
pSBP (mmHg), mean ± SD
|
152 ± 40
|
129 ± 35
|
<0.001*
|
pHR (beats/min), mean ± SD
|
84 ± 23
|
90 ± 24
|
<0.001*
|
Chest AIS ≥ 4, n (%)
|
158 (9)
|
957 (21)
|
<0.001†
|
Abdomen AIS ≥ 4, n (%)
|
10 (0.5)
|
154 (3)
|
<0.001†
|
Extremity AIS ≥ 4, n (%)
|
36 (2)
|
292 (7)
|
<0.001†
|
ISS, median (IQR)
|
25 (25, 29)
|
22 (16, 34)
|
<0.001‡
|
Hospital mortality, n (%)
|
1,075 (58)
|
982 (22)
|
<0.001†
|
-
LT-BI life-threatening brain injuries requiring immediate neurosurgical intervention, SD standard deviation, pSBP systolic blood pressure in the prehospital setting, pHR heart rate in the prehospital setting, AIS Abbreviated Injury Scale, ISS Injury Severity Score, IQR interquartile range
-
*Student’s t test
-
†chi-square analysis
-
‡Mann–Whitney U test