Table 1

Baseline characteristics of the ICU patients included in the study


Infectious SIRS (n = 142)
Noninfectious SIRS (n = 49)
P-value*

Age (years)
62.7 ± 15.3
66.8 ± 14.3
0.1
APACHE II score
16.6 ± 6.5
17.8 ± 6
0.27
SAPS II score
36.6 ± 12.1
36.4 ± 11.4
0.95
SOFA score
8.8 ± 3.2
7.7 ± 2.7
0.034
Length of ICU stay (days)
11.4 ± 11.3
7.5 ± 7.8
0.03
Sites of infection



     Community-acquired pneumonia
57 (40.1%)
NA

     Hospital-acquired pneumonia
9 (6.3%)
NA

     Urinary tract infection
11 (7.7%)
NA

     Bacterial meningitis
4 (2.8%)
NA

     Peritonitis
23 (16.2%)
NA

     Other infections
38 (26.7%)
NA

ICU mortality
39 (27.4%)
13 (26.5%)
0.89
Total leukocyte count (cells/ml)
13,497 ± 7,254
10,345 ± 5,569
0.006
Total eosinophil count (cells/ml)
105 ± 220
114 ± 186
0.8
Eosinopenia (<40 cells/ml)
70 (49.3%)
18 (36.7%)
0.12

Data are presented as the mean ± standard deviation or n (%). *Calculated by means of the Student t-test (quantitative variables) and chi-square test (qualitative variables). APACHE, Acute Physiology and Chronic Health Evaluation; ICU, intensive care unit; NA, not applicable; SAPS, Simplified Acute Physiology Score; SIRS, systemic inflammatory response syndrome; SOFA, Sequential Organ Failure Assessment.

Smithson et al. Critical Care 2009 13:409   doi:10.1186/cc7877