Abstract
Background and aims: Urinary tract infections (UTIs) are intense public health problems and are precipitated by a variety of pathogens. This study was performed to determine the frequency of bacterial agents of UTIs and the antibiotic resistance pattern of Escherichia coli in urinary culture samples of patients at Shahid Ashrafi Esfahani hospital in Tehran, Iran. Methods: A cross-sectional study was conducted on all urinary tract cultures from January 2021 to January 2022 at Shahid Ashrafi Esfahani hospital in Tehran, Iran. Urine culture and antimicrobial susceptibility tests were performed according to Clinical and Laboratory Standards Institute (CLSI) guidelines. Statistical analyses were performed by appropriate descriptive and inferential tests such as the chi-square test using Stata version 17, and the level of significance was set at 0.05. Results: The mean age of patients with E. coli was 50.2±1.8 (confidence interval=46.6-53.8) years, and their age range was between 6-87 years. The highest prevalence of infection occurred in men over 60 years of age and in women aged 40-60 years. Further, the highest resistance and the highest sensitivity were related to ceftazidime (CAZ) and cefotaxime (CTX), respectively. Conclusion: In this study, the highest resistance and sensitivity belonged to CAZ and CTX, respectively. In addition, CTX is the primary antibiotic prescribed to deal with UTIs in medical practice.
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