TABLE 4.

Univariate analysis comparing the urinary tract infection patient groups with or without 28-day relapse

Parametera	Patient groups with or without a 28-day relapse		P
	Without (n = 53)	With (n = 10)
Median age in yrs (IQR)	73.0 (23)	64.0 (29)	0.21
Male, no. (%) of subjects	19 (36)	5 (50)	0.31
No. (%) of subjects with underlying urinary diseaseb	19 (36)	4 (40)	1.00
Escherichia coli, no. (%)	45 (85)	9 (90)	1.00
Klebsiella pneumoniae, no. (%)	8 (15)	1 (10)
Zone diam in mm (minimum–maximum, IQR)/eMIC(minimum–maximum) in mg/L	20.0 (16.0–26.0, 3)/1.0 (1.3–2.2)	20.0 (18.0–22.0, 4)/0.78 (0.9–1.4)	0.89
No. (%) of subjects with complicated UTI	48 (91)	8 (80)	0.31
No. (%) of subjects with diagnosis of
Acute pyelonephritis	28 (53)	6 (60)
Prostatitis	5. (9)	1. (10)
Unclassifiable	6 (11)
Cystitis	14 (26)	3 (30)	1.00
FRPM as empirical treatment, no. (%)	26 (49)	5 (50)	1.00
Combination therapy, no. (%)	21 (40)	6 (60)	0.30
Total duration of treatment, days (IQR)	15 (20)	26.5 (24)	0.24
Duration of FRPM treatment, days (IQR)	14 (18)	14 (16)	0.46

^aeMIC, estimated MIC; IQR, interquartile range.

^bIncluding post-urological surgery.