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Table 1 Characteristics of patients with severe sepsis and of healthy control individuals

From: Serum total antioxidant capacity reflects severity of illness in patients with severe sepsis

  Patients with severe sepsis  
Characteristic Survivors (n = 54) Nonsurvivors (n = 19) Healthy controls (n = 76)
Age (years) 65.1 ± 17.0 68.4 ± 14.6 65 ± 7.9
Gender (male/female) 29/25 12/7 43/33
APACHE II score 21.0 ± 7.3 29.4 ± 7.8* -
Septic shock (emergency department visit) 27 (50.0%) 15 (78.9%)* -
Length of stay in ICU (days) 29.2 ± 20.2 9.7 ± 11.0*  
Diagnoses of severe sepsis (n [%])
   Pneumonia 29 (53.7) 10 (52.6)  
   Soft tissue infections 8 (14.8) 1 (5.3)  
   Urinary tract infections 6 (11.1) 1 (5.3)  
   Biliary tract infections 5 (9.3) 1 (5.3)  
   Central nervous system infections 1 (1.8) 2 (10.5)  
   Unknown foci 5 (9.3) 4 (21.0)  
Microbiological data (n)
   Gram-negative bacteria 21 5  
   Gram-positive bacteria 12 3  
   Polybacterial 8 2  
   Fungi 3 0  
   Positive culturesa 45 10  
   Positive bacteremiasb 20 5  
  1. Data are shown as mean ± standard deviation, unless otherwise stated. *P < 0.05, versus survivors. aRates of positive culture; samples include sputum, urine, and other tissues. bRates of positive blood culture.