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Table 3 Univariate analysis: comparison of factors predicting intensive care mortality

From: Plasma DNA concentration as a predictor of mortality and sepsis in critically ill patients

  Survived (n = 39) Died (n = 13) P value
Age (years)    
   Median (interquartile range) 70 (19) 74 (11) 0.49
   Minimum–maximum 16–85 36–81  
Male sex [n (%)] 14 (36) 6 (46) 0.39
Operative reason for admission [n (%)] 26 (67) 7 (54) 0.38
Admission Sepsis-related Organ Failure Assessment score    
   Median (interquartile range) 4 (5) 8 (4) 0.004
   Minimum–maximum 0–15 2–13  
Organ failures within the first 24 hours    
   Cardiovascular failure [n (%)] 11 (28) 7 (54) 0.11
   Renal failure [n (%)] 4 (10) 4 (31) 0.09
   Respiratory failure [n (%)] 25 (64) 11 (85) 0.30
   Admission with sepsis [n (%)] 12 (31) 7 (54) 0.19
Co-morbidities of patients prior to admission    
   Chronic lung disease [n (%)] 6 (15) 1 (8) 0.66
   Ischaemic heart disease [n (%)] 6 (15) 5 (42) 0.11
   Diabetes mellitus [n (%)] 5 (13) 2 (17) 0.99
   Chronic renal failure [n (%)] 1 (3) 1 (8) 0.44
   Chronic liver failure [n (%)] 0 (0) 1 (8) 0.25
   Congestive cardiac failure [n (%)] 3 (8) 1 (8) 0.99
   Hypertension [n (%)] 18 (46) 5 (42) 0.75
Plasma free DNA level (ng/ml)    
   Median (interquartile range) 71 (67) 321 (189) <0.001
   Minimum–maximum 8–1,622 40–8,849