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. 2018 Oct;6(20):402. doi: 10.21037/atm.2018.09.56

Table 5. Explorative univariate analysis of patients presenting any postoperative colonization or infection.

Analyzed variable Patient without any postoperative colonization or infection (n=24) Patient with any postoperative colonization or infection (n=17) P value
Demographic characteristics
   Male gender [%] 22 [92] 15 [88] 0.71
   Age ± SD (years) 46±4 42±5 0.48
   BMI 23±0.9 24±0.8 0.79
Admission characteristics
   SAPS II score 49±4 45±4 0.56
   SOFA score at admission 6±0.5 5±0.7 0.22
   Type of admission, n [%] 0.29
      Trauma 15 [63] 15 [88]
      Surgery 5 [21] 1 [6]
      Medical 4 [17] 1 [6]
Evolution before surgery
   Time of MV before surgery (days) 11±4 5±0.6 0.24
   Time before surgery (days) 11±4 5±0.6 0.28
   Use of SOD before surgery [%] 11 [46] 10 [59] 0.41
   Use of antibiotic for any infection before surgery, n [%] 6 [25] 0 0.03
Evolution after surgery
   SOFA score at surgery day 5±0.6 4±0.6 0.62
   ASA score at surgery day 4±0.2 4±0.2 0.89
   SAP group, n [%] 0.28
      1 7 [29] 1 [6]
      2 2 [8] 3 [18]
      3 3 [13] 2 [12]
      4 12 [50] 11 [65]
   Total length of ICU stay (days) 28±9 33±5 0.61
   Death, n [%] 5 [21] 3 [18] 0.80

Quantitative variables are presented with standard error. BMI, body mass index; SAPS, Simplified Acute Physiology Score; SOFA, Sequential Organ Failure Assessment; MV, mechanical ventilation; SDD, selective digestive decontamination; ASA, American Society of Anesthesiologist; SAP, surgical antimicrobial prophylaxis; ICU, intensive care unit.