Table 2.

Urine Culture Data for First and Breakthrough Urinary Tract Infections.

	First UTI prior to prophylaxis, n (%)	Breakthrough UTIs, n (%)
Number of positive urine cultures	634	65
Gram-positive organisms	135 (21)	16 (25)
Coagulase-negative Staphylococcus	20 (3)	7 (11)
Enterococcus spp.	91 (14)	7 (11)
Gram-positive cocci, not otherwise specified	5 (1)	1 (2)
Group B Streptococcus	12 (2)	-
Staphylococcus aureus	7 (1)	1 (2)
Gram-negative organisms	471 (74)	47 (72)
Citrobacter spp.	16 (3)	1 (2)
Enterobacter spp.	99 (16)	12 (19)
Escherichia coli	153 (24)	10 (16)
Gram-negative rod, not otherwise specified	15 (2)	1 (2)
Klebsiella spp.	123 (19)	13 (20)
Proteus spp.	16 (3)	1 (2)
Pseudomonas spp.	30 (5)	9 (14)
Serratia spp	19 (3)	-
Other bacterial species	28 (4)	2 (3)

UTI: urinary tract infection.