Prevalence of extended-spectrum beta-lactamase producing Escherichia coli in community-onset urinary tract infections in France in 2013.

Objectives: We sought to assess the importance of extended-spectrum beta-lactamase (ESBL) producing Enterobacteriaceae in urinary tract infections in outpatients in France.

Methods: Retrospective laboratory based survey analysing susceptibility patterns of Escherichia coli and Klebsiella pneumoniae isolates providing from urines collected from outpatients during three months in 2013.

Results: Four hundred and ninety-nine laboratories collected data on 51,643 E.