The role of extended-spectrum cephalosporin-resistance in recurrent community-onset Enterobacteriaceae urinary tract infections: a retrospective cohort study

Table 3 Multivariable Cox proportional hazards regression model of recurrent UTI including inappropriate initial antibiotic therapy

Variable	aHR (95% CI)	P value
ESC-R status	1.26 (0.91–1.76)	0.17
Prior UTI^a	1.53 (1.12–2.11)	0.01
Urinary catheter^b	1.51 (0.99–2.32)	0.06
Recent SNF stay^a	0.36 (0.17–0.75)	0.01
Inappropriate initial antibiotic therapy	1.47 (1.04–2.06)	0.03

^aWithin the 6 months prior to the index UTI
^bCatheter in place at the time of the index UTI diagnosis
Abbreviations: aHR adjusted hazard ratio, CI confidence interval, ESC-R extended-spectrum cephalosporin-resistance, SNF skilled nursing facility, UTI urinary tract infection

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