Risk factors and drug resistance of adult community-onset urinary tract infections caused by <i>Escherichia coli-</i> producing extended-spectrum β-lactamase in the Chongqing region, China: a retrospective case–control study

Our results revealed high ESBL-EC detection rates. COUTIs caused by ESBL-EC are more likely to occur in patients with parenchymal tumour, a history of urolithiasis stone fragmentation, a history of urological surgery, hospitalisation within 6 months, indwelling catheter outside the hospital and use of third-generation cephalosporins. These patients were highly resistant to penicillins, cephalosporins and quinolones.