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Table 3 Values in the AIS model scale according to anatomical zone and mortality

From: Machine learning techniques for mortality prediction in critical traumatic patients: anatomic and physiologic variables from the RETRAUCI study

Variable

ALL

N = 9625

SURVIVORS

N = 8413

NON-SURVIVORS

N = 1212

p-value

AHEAD

   

<  0.001

0

45.9

49.6

20.7

 

1

3.8

4.1

1.7

 

2

8.6

9.3

3.4

 

3

16.0

17.0

9.4

 

4

12.3

11.6

17.2

 

5

13.2

8.4

47.1

 

6

0.1

0.0

0.6

 

ANECK

   

0.306

0

98.3

98.3

98.3

 

1

0.4

0.5

0.4

 

2

0.5

0.5

0.6

 

3

0.5

0.5

0.3

 

4

0.2

0.2

0.2

 

5

0.1

0.0

0.2

 

AFACE

   

<  0.001

0

79.2

79.0

80.7

 

1

7.7

7.9

5.9

 

2

10.1

10.2

9.6

 

3

2.6

2.6

2.6

 

4

0.4

0.3

1.2

 

ATHORAX

   

<  0.001

0

50.8

49.6

59.1

 

1

2.2

2.2

1.7

 

2

9.2

9.7

5.9

 

3

23.3

24.6

13.8

 

4

10.7

10.4

12.9

 

5

3.8

3.4

6.6

 

6

0.1

0.0

0.1

 

AABDOM

   

<  0.001

0

79.0

78.3

83.5

 

1

0.9

1.0

0.3

 

2

7.9

8.3

5.0

 

3

6.9

7.3

4.5

 

4

4.0

4.0

4.1

 

5

1.3

1.1

2.4

 

6

0.1

0.0

0.1

 

ASPINE

   

<  0.001

0

72.5

71.9

76.7

 

1

0.0

0.0

0.0

 

2

17.3

17.9

13.2

 

3

6.0

6.1

5.4

 

4

1.9

1.9

1.2

 

5

2.2

2.2

2.5

 

6

0.2

0.1

1.1

 

AUPPEREXT

   

<  0.001

0

74.3

73.0

83.6

 

1

2.4

2.5

1.7

 

2

20.5

21.6

12.7

 

3

2.6

2.7

1.9

 

4

0.2

0.3

0.1

 

ALOWEREXT

   

<  0.001

0

70.4

69.3

78.0

 

1

2.1

2.2

1.2

 

2

10.0

10.5

6.0

 

3

11.1

11.8

6.6

 

4

4.6

4.9

2.5

 

5

1.9

1.4

5.7

 

AEXTERNAL

   

<  0.001

0

96.1

96.0

96.9

 

1

2.6

2.8

1.2

 

2

0.3

0.3

0.2

 

3

0.3

0.4

0.1

 

4

0.2

0.2

0.2

 

5

0.5

0.3

1.3

 

6

0.1

0.0

0.1

 
  1. Values expressed as percentages. p-value: calculated using chi-square test or Fisher’s exact test