Table 2.

Antibiotic Use during 6 Months before Admission

	Group; No. (%) of Patients
Antibiotic Class*	ESBL Urosepsis (n = 58)	Non-ESBL Urosepsis (n = 118)	p Value
Cephalosporins	12 (20.7)	13 (11.0)	0.11
Fluoroquinolones	24 (41.4)	24 (20.3)	0.004
β-Lactams	19 (32.8)	24 (20.3)	0.09
Any antibiotic†	36 (62.1)	40 (33.9)	0.001

ESBL = extended-spectrum β-lactamase.

^*Patients received 1 or more doses of the antibiotic listed.

^†Any systemic antibiotic received by patient (IV or oral), regardless of antibiotic class.