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Table 4 Baseline characteristics of the trauma cohort

From: Longer storage duration of red blood cells is associated with an increased risk of acute lung injury in patients with sepsis

Characteristic ALI/ARDS No ALI/ARDS p value
  (n = 80) (n = 96)  
Age (yr) 51 (36, 63) 46 (29, 59) 0.094a
Female gender 28.8% (23) 24.0% (23) 0.471b
Current smoker 46.3% (31) 46.5% (40) 0.976b
ICU days 12 (7, 16) 8 (5, 13) 0.014a
Ventilator-free days 17 ( 12, 22) 21 (16, 24) <0.001a
Hospital days 16 (11, 24) 15 (10, 23) 0.281a
Baseline APACHE II score 27 (24, 31) 26 (22, 30) 0.035a
Baseline ISS score 34 (29, 41) 28 (19, 37) 0.011a
Blood median storage days 20 (14, 26) 20 (14, 27) 0.651a
Blood maximum storage days 25 (19, 32) 25 (19, 31) 0.583a
Number of units transfused 4 (2, 6) 4 (2, 9) 0.465a
  1. Data given as median (25th percentile, 75th percentile) or percent (frequency) of patients.
  2. aWilcoxon test; bPearson test.