Table 1.

Patient characteristics at ICU admission

	Patients with Bacterial Infection n = 58	Patients without Bacterial Infection n = 61	Odds Ratio (95% confidence interval)	P value
Age (years)	62.4 (45.4-70.6)	46.3 (39.1-60.5)	1.03 (1.00-1.05)	0.153
Female gender - no. (%)	23 (39.7)	27 (44.3)	0.3 (0.39-1.72)	0.61
Comorbidities
Liver disease, n (%)	2 (3.45)	4 (6.55)	1.96 (0.34-11.16)	0.44
Renal Dysfunction, n (%)	7 (12.07)	5 (8.19)	0.65 (0.19-2.18)	0.48
Diabetes mellitus, n (%)	6 (10.34)	1 (1.63)	0.14 (0.17-1.24)	0.07
COPD, n (%)	7 (12.07)	7 (11.47)	0.94 (0.31-2.88)	0.92
Heart disease, n (%)	7 (12.07)	7 (11.47)	0.94 (0.31-2.88)	0.92
Reasons for ICU admission
Acute Respiratory Failure	29(50)	21(34.42)	0.52 (2.25-1.10)	0.08
Shock	25(43.1)	4(6.55)	10.79 (3.45-33.73)	< 0.001
Coma	1 (1.7)	15 (24.6)	0.54 (0.01-0.42)	0.005
Acute kidney injury	0 (0)	7 (11.47)	/	/
SAPSII score at admission	47.5 (38-66)	42 (30-54.5)	1.016/point (1.0-1.03)	0.05
LOD at Day 1	4 (3-6)	4 (1-6)	1.11 (0.32-1.01)	0.66
LOD at Day 3	3 (1-5)	2 (1-4)	1.1 (0.93-1.31)	0.28
Invasive ventilation on Day 1	20 (34.48)	27 (44.26)	0.66 (0.31-1.39)	0.27
Vasoactive drugs on Day 1	27 (46.55)	11 (18.03)	3.96 (1.72-9.10)	0.002
Dialysis on Day 1	7 (12.07)	6 (9.83)	1.26 (0.40-4.00)	0.69
Hospital mortality, n (%)	20 (34)	19 (31.15)	1.16 (0.54-2.50)	0.69

COPD, chronic obstructive pulmonary disease; LOD: Logistic Organ Dysfunction system;

SAPSII: Simplified Acute Physiology Score version II