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Table 2 Characteristics and clinical findings at reoperation in the 100 patients with PP

From: Risk factors for multidrug resistant bacteria and optimization of empirical antibiotic therapy in postoperative peritonitis

Variable Patients with MDR
bacteria (n = 41)
Patients with other bacteria (n = 59) P
APACHE II, mean ± SD 21 ± 7 21 ± 7 0.90
SOFA, mean ± SD 7 ± 4 7 ± 4 0.63
≥ 1 organ failures, n (%) 32 (78) 48 (81) 0.68
Vasopressor support, n (%) 26 (63) 41 (69) 0.38
Time to reoperation (days), mean ± SD 13 ± 16 10 ± 11 0.55
Mechanisms of PP    
   Anastomotic leakage, n (%) 14 (34) 20 (34) 0.98
   Perforation, n (%) 9 (22) 21 (36) 0.14
   Miscellaneous, n (%) 8 (20) 10 (17) 0.98
   Unknown cause, n (%) 10 (24) 8 (14) 0.27
Source of PP    
   Lower intestinal tract, n (%) 16 (39) 32 (54) 0.67
  1. APACHE, acute physiology and chronic health evaluation; MDR, multidrug resistant; PP, postoperative peritonitis; SD, standard deviation; SOFA, Sequential Organ Failure Assessment.