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.