Table 1.

Clinical factors possibly influencing the culture results of blood and urine specimens

Clinical factor (%)	Blood (N=40)	Urine (N=40)	P
Age, median (IQR)	72.5 (59–81)	70 (54.5–78.5)	0.473
Male sex, N (%)	4 (10.0)	2 (5.0)	0.675
Time lag between fever or UTI symptom onset and bacterial culture sampling, days, median (IQR)	2 (1–3.75)	1 (0–4)	0.382
History of antibiotic use within three days prior to bacterial culture sampling	8/39 (20.5)	7 (17.5)	0.733
Antimicrobial use concordant with the antimicrobial susceptibility of the causative organisms	3/39 (7.7)	1 (2.5)	0.359
Existence of any underlying urinary tract abnormalities	18 (45.0)	17 (42.5)	0.822
Benign prostatic hypertrophy among male patients	1/4 (25.0)	2/2 (100)	0.400
Neurogenic bladder	1 (2.5)	2 (5.0)	1.000
Urolithiasis	12 (30.0)	5 (12.5)	0.056
Urinary retention	0 (0)	1 (2.5)	1.000
Vesicoureteral reflux	0 (0)	0 (0)	-
Bladder diverticulum	0 (0)	1 (2.5)	1.000
Prolapse of vagina among female patients	0 (0)	0 (0)	-
Intubated urinary tract at the time of culture sampling	5 (12.5)	9 (22.5)	0.239
Intermittent catheterization	0 (0)	2 (5.0)	0.494
History of urinary catheterization during one month prior to inclusion	4 (10.0)	3 (7.5)	1.000
Polycystic kidney	0 (0)	0 (0)	-
Kidney tumor	0 (0)	1 (2.5)	1.000
Urinary tract surgery during three months prior to inclusion	2 (5.0)	1 (2.5)	1.000
Surgically reconstructed bladder	0 (0)	0 (0)	-

Abbreviations: IQR, interquartile range; UTI, urinary tract infection.