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Table 1 Description of patients and hospital characteristics

From: Association between the plasma-to-red blood cell ratio and survival in geriatric and non-geriatric trauma patients undergoing massive transfusion: a retrospective cohort study

Description Non-geriatric age group
(n = 12,241)
Geriatric age group
(n = 1653)
p-value
Patients’ characteristics    
 Age, median (IQR) 33 (24–48) 72 (68–79)  < 0.001
 Sex (male) n (%) 9647 (78.8) 1056 (65.5)  < 0.001
 Mechanism of injury     < 0.001
  Blunt injury, n (%) 9407 (76.8) 1422 (86.0)  
  Penetrating injury, n (%) 2834 (23.2) 231 (14.0)  
 Total prehospital time, median (IQR) 37 (24–63) 45 (31–69)  < 0.001
 Comorbidities    
  Heart failure, n (%) 45 (0.4) 59 (3.6)  < 0.001
  Renal failure, n (%) 61 (0.5) 12 (0.7) 0.071
  Cerebrovascular disease, n (%) 52 (0.4) 31 (1.9)  < 0.001
  Diabetes, n (%) 546 (4.5) 264 (16.0)  < 0.001
  Respiratory disease, n (%) 320 (2.6) 115 (7.0)  < 0.001
  Liver cirrhosis, n (%) 181 (1.5) 35 (2.1) 0.062
  Dementia, n (%) 7 (0.1) 41 (2.5)  < 0.001
 SBP in the ED, median (IQR) 74 (60–90) 70 (57–83)  < 0.001
 RTS, median (IQR) 6.1 (3.4–7.6) 6.8 (3.8–7.6)  < 0.001
 AIS injured region    
  Head ≥ 3, n (%) 3,989 (32.6) 634 (38.4)  < 0.001
  Face ≥ 3, n (%) 371 (3.0) 39 (2.4) 0.151
  Neck ≥ 3, n (%) 543 (4.4) 39 (2.4) 0.008
  Thorax ≥ 3, n (%) 8481 (69.3) 1192 (76.2)  < 0.001
  Abdomen ≥ 3, n (%) 7110 (58.1) 758 (47.2)  < 0.001
  Spine ≥ 3, n (%) 1321 (10.8) 239 (13.5) 0.001
  Upper extremity ≥ 3, n (%) 1067 (8.7) 86 (6.0)  < 0.001
  Pelvis/lower extremity ≥ 3, n (%) 5383 (44.0) 792 (51.5)  < 0.001
  Surface ≥ 3, n (%) 2 (0.001) 1 (0.001) 1.000
 ISS, median (IQR) 29 (22–41) 29 (22–41) 0.677
Hospital characteristics    
 Trauma center level    0.087
  Level 1, n (%) 9108 (74.4) 1186 (71.7)  
  Level 2, n (%) 3133 (25.6) 467 (28.3)  
 Teaching status    0.004
  University, n (%) 7602 (62.1) 957 (57.9)  
  Community, n (%) 3752 (30.7) 565 (34.2)  
  Non-teaching, n (%) 887 (7.2) 131 (7.9)  
  1. IQR interquartile range; SBP systolic blood pressure; ED emergency department; RTS Revised Trauma Score; AIS Abbreviated Injury Scale; ISS Injury Severity Score