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Table 5 Baseline characteristics of the nonsepsis, nontrauma 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 = 13) (n = 112)  
Age (yr) 56 (48, 59) 61 (49.8, 68) 0.191a
Female gender 69.2% (9) 43.8% (49) 0.081b
Current smoker 30.8% (4) 24.3% (27) 0.612b
ICU days 6 (3, 8) 5 (3, 9) 0.827a
Ventilator-free days 24 (16, 26) 26 (23, 27) 0.094a
Hospital days 16 (11, 21) 11 (7, 20.3) 0.337a
Baseline APACHE II score 26 (24, 29) 26 (22, 31) 0.711a
Blood median storage days 20 (17, 29) 22 (16, 29) 1a
Blood maximum storage days 26 (19, 35) 26.5 (20, 33) 0.907a
Number of units transfused 4 (2, 5) 4 (2, 8) 0.88a
  1. Data given as median (25th percentile, 75th percentile) or percent (frequency) of patients.
  2. N is the number of nonmissing values.
  3. aWilcoxon test; bPearson test.