Table 6 Simple linear regression analysis for total hospital LOS (length of stay) and ICU LOS

ISS (vs. 5–15)

< 0.0001

< 0.0001

 16–24

9.27

1.59

2.95

2.49

 25–35

16.90

1.65

7.46

2.35

 > 35

24.37

2.33

13.68

2.76

 Head/neck score > 2 (vs. ≤ 2)

11.88

1.65

< 0.0001

5.52

1.73

0.0016

 Chest score > 2 (vs. ≤ 2)

6.67

1.50

< 0.0001

0.64

1.69

0.7098

 Abdomen score > 2 (vs. ≤ 2)

10.54

1.67

< 0.0001

0.99

1.83

0.5898

 Extremity score > 2 (vs. ≤ 2)

2.14

1.48

< 0.0001

1.59

1.81

0.3820