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Table 1 Categorical variables and covariates for the crystalloid and PRBC group; SBP, Systolic Blood Pressure; ISS, Injury Severity Score; MOI, Mechanism of Injury; RTC, Road Traffic Collision; IQR, Interquartile Range; N/A, Not Available

From: Mortality of civilian patients with suspected traumatic haemorrhage receiving pre-hospital transfusion of packed red blood cells compared to pre-hospital crystalloid

  Crystalloid Group PRBC Group P value
n = 103 n = 92
Gender
 Female (n, %) 26 (25) 24 (26)  
 Male (n, %) 77 (74) 68 (73) 1.00
Age (mean, SD) 45 (20) 43 (20) 0.50
SBP (mean, SD) 88.21 (25) 90.65 (32) 0.56
ISS (mean, SD) 31.37 (14) 32.26 (12) 0.67
Median 999 time to HEMS on scene time (minutes, IQR) 30 (IQR 23.25–41.75) 35 (IQR 24–51.5)  
MOI (n, %)
 RTC Driver 17 (16) 18 (19) 0.73
 RTC Passenger 10 (9) 11 (11)
 RTC Pedestrian 8 (7) 18 (19)
 RTC Motorcyclist 22 (21) 13 (14)
 Fall 10 (9) 9 (9)
 Penetrating Injury 2 (1) 5 (5)
 Pedal Cyclist 6 (5) 5 (5)
 Other 9 (8) 7 (7)
 N/A 19 (18) 6 (6)
Mortality
 6 h mortality
  No (n, %) 84 (81) 82 (89) 0.2
  Yes (n, %) 19 (18) 10 (10)
 28 d mortality
  No (n, %) 45 (59) 57 (73) 0.09
  Yes (n, %) 31 (40) 21 (26)