INTRODUCTION Urinary tract infections (UTIs) are among the most frequent infections in clinical practice worldwide. Their frequency and burden must be higher than available data suggest because they are not among mandatory diseases to be notified. CLASSIFICATION OF URINARY INFECTIONS Although there are many different proposals for classifying UTIs, classifications based on acquisition settings and complication status are more widely used. These include community- acquired UTIs (CAUTIs) or healthcare-associated UTIs (HAUTIs) and uncomplicated or complicated UTIs. EPIDEMIOLOGY OF UROLOGICAL INFECTIONS AND GLOBAL BURDEN As the most frequently seen infectious disease, CAUTIs affect more than 150 million people annually. Complicated UTIs in particular constitute a huge burden on healthcare systems as a frequent reason for hospitalization. The prevalence of HAUTIs ranges between 1.4% and 5.1%, and the majority of them are catheter-related UTIs. Community-onset HAUTIs have gained importance in recent years. CONCLUSION As frequent infectious diseases, UTIs create clinical and economic burdens on healthcare systems, and they also affect quality of life determinants.

中文翻译：

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泌尿科感染的流行病学：全球负担。

引言泌尿道感染（UTI）是全球临床实践中最常见的感染之一。它们的频率和负担必须高于现有数据表明的水平，因为它们不属于要通报的强制性疾病。尿路感染的分类尽管有许多不同的提议来对尿路感染进行分类，但基于采集设置和并发症状态的分类却得到了更广泛的应用。这些包括社区获得的UTI（CAUTI）或与医疗保健相关的UTI（HAUTI）以及简单或复杂的UTI。泌尿科感染的流行病学和全球负担作为最常见的传染病，CAUTI每年影响超过1.5亿人。作为住院的常见原因，复杂的UTI特别给医疗保健系统带来了沉重负担。HAUTI的患病率介于1.4％和5.1％之间，并且大多数是与导管相关的UTI。近年来，社区发起的HAUTI变得越来越重要。结论作为常见的传染病，泌尿道感染给医疗保健系统造成了临床和经济负担，它们还影响生活质量的决定因素。