Table 2.

Demographic and microbiological data of patients according to blood culture positivity. Data are presented as a mean (SD) or median (IQR) for continuous measures as appropriate and n (%) for categorical measures. N: number.

	Total	Negative Blood Culture	Positive Blood Culture	p-Value
	N = 161	N = 142	N = 19
Age (months)	3.0 (1.0–8.0)	3.0 (1.0–8.0)	2.0 (1.0–36.0)	0.55
Female Sex	68 (42%)	64 (45%)	4 (21%)	0.047
Bacteria found in Urine culture				0.70
E. coli	124 (77%)	105 (74%)	19 (100%)
K. oxytoca	3 (2%)	3 (2%)	0 (0%)
K. pneumiae	7 (4%)	7 (5%)	0 (0%)
S. aureus	1 (1%)	1 (1%)	0 (0%)
E. faecalis	8 (5%)	8 (6%)	0 (0%)
P aeruginosa	6 (4%)	6 (4%)	0 (0%)
P Mirabilis	3 (2%)	3 (2%)	0 (0%)
Citrobacter	3 (2%)	3 (2%)	0 (0%)
E faecium	1 (1%)	1 (1%)	0 (0%)
Others *	5 (3%)	5 (4%)	0 (0%)
Second Bacteria in Urine culture				0.95
No second bacteria	127 (79%)	110 (77%)	17 (89%)
E. coli	3 (2%)	3 (2%)	0 (0%)
K. oxytoca	1 (1%)	1 (1%)	0 (0%)
E. fecalis	17 (11%)	16 (11%)	1 (5%)
P. aeruginosa	1 (1%)	1 (1%)	0 (0%)
P. mirabilis	1 (1%)	1 (1%)	0 (0%)
Citrobacter	1 (1%)	1 (1%)	0 (0%)
E. fecium	2 (1%)	2 (1%)	0 (0%)
S. faecalis	4 (2%)	3 (2%)	1 (5%)
Others *	4 (2%)	4 (3%)	0 (0%)
Same Germ in blood and urine	10 (6%)	0 (0%)	10 (53%)	<0.001
Urinary tract malformation	46 (29%)	34 (24%)	12 (63%)	<0.001
CRP	46 (14–95)	40 (12–95)	55 (42–126)	0.13
PCT	1 (0–3)	0 (0–2)	3 (1–12)	<0.001

* means other bacteria.