Extended-spectrum beta-lactamase (ESBL) in E. coli has been associated with increased treatment failure and cost management.
The prevalence of ESBL-producing E. coli in outpatients' urinary samples has increased significantly in France to reach 3.3%.
The prevalence of ESBL-producing Klebsiella pneumoniae in the outpatient setting is circa twice than for E. coli.
The prevalence of ESBL-producing E. coli in nursing homes is circa 4 times higher than in the outpatient setting.
The prevalence of ESBL-producing E. coli in urinary samples increases significantly with patient's age.