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Table 2 Patient characteristics according to risk groups. After subdivision into the studied groups

From: Routine whole body CT of high energy trauma patients leads to excessive radiation exposure

  Low risk group Intermediate risk group High risk group P-value
  (n = 139) (n = 322) (n = 62)  
Age - mean, years (SD) 32.52 (21.35) 37.66 (20.24) 38.49 (21.13) 0.035
Male gender % (n): 61.2 % (85) 64.3 % (207) 77.4 % (48) 0.075
Mechanism of injury % (n)     <0.001
 Unprotected traffic victim (MC, bike, pedestrian) 20.9 % (29) 34.2 % (110) 9.7 % (15)  
 Protected traffic victim (MVC) 62.6 % (87) 36.3 % (117) 10.9 % (25)  
 Fall < 3 m 10.8 % (15) 13.4 % (43) 3.3 % (2)  
 Fall > 3 m 2.9 % (4) 7.8 % (25) 27.5 % (11)  
 Other (chrush, blunt, SW) 2.9 % (4) 83.9 % (27) 22.5 % (9)  
Examined with whole body computer tomography in trauma (WBCT-T) % (n) 32.4 % (45) 60.2 % (194) 82.3 % (51) <0.001
Injury on WBCT-T % (n) 0 % (0) 44.8 % (87) 74.5 % (38) <0.001
Specific radiological exams % (n) 46.8 % (65) 58.4 % (188) 43.5 % (27) 0.016
Injury Severity Score (ISS) - mean (SD) 0.84 (1.57) 4.42 (6.30) 16.48 (18.14) <0.001
S-etanol in mmol/l in intoxicated patients - mean (SD) - 43.53 (23.54) 38.99 (15.80) 0.53
Intoxication on admission % (n) 0 % (0) 7.8 % (23) 25.0 % (14) <0.001
Admission to intensive care unit (ICU) % (n) 20.1 % (28) 33.5 % (108) 77.4 % (48) <0.001