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Table 1 Patient demographics

From: Does repeat Hb measurement within 2 hours after a normal initial Hb in stable trauma patients add value to trauma evaluation?

  HD stable HD stable + initial Hb normal
n = 1,246 n = 914
Age (years) 40.6 (18.0)* 39.4 (16.4)*
Men 812 (65.3%) 578 (63.2%)
Blunt trauma 1,160 (93.3%) 862 (94.3%)
ISS (points) 5 (1 to 13) 5 (1 to 10)
 AIS code severity 3 or more/total AIS codes 907/2,994 (30.3%) 495/1,878 (26.4%)
 AIS head ≥ severity 3 351 (39%) 206 (41.8%)
 AIS chest ≥ severity 3 142 (15.8%) 75 (15.2%)
 AIS abdomen ≥ severity 3 120 (13.3%) 74 (15%)
 AIS extremities ≥ severity 3 222 (24.5%) 104 (21%)
Multitrauma (ISS ≥ 16) 270 (21.7%) 149 (16.3%)
GCS on admission 15 (14 to 15) 15 (15 to 15)
Initial Hb (g/dl)   
 Men 14.2 (1.5)* 15.0 (0.9)*
 Women 12.8 (1.5)* 13.4 (0.9)
Repeat Hb in g/dl   
 Men 13.9 (1.7)* 14.6 (1.1)*
 Women 12.5 (1.6)* 13.1 (1.0)*
Hospital stay (days) 2 (0 to 5) 2 (0 to 4)
ICU stay (days) 0 (0 to 0) 0 (0 to 0)
In-hospital mortality 32 (2.6%) 12 (1.3%)
  1. Data are number (%) or median (interquartile range (IQR)) unless otherwise indicated. *Mean (SD). HD, hemodynamically; Hb, haemoglobin; ISS, Injury Severity Score; AIS, Abbreviated Injury Scale; GCS, Glasgow Coma Score; g/dl, grams per deciliter; ICU, Intensive Care Unit.