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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