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目的 研究下肢骨折术后留置尿管患者导尿管相关尿路感染 (CAUTI) 的危险因素, 为防控CAUTI的发生提供依据.方法 采用回顾性分析方法, 对某医院住院行下肢骨折术后留置导尿管患者的CAUTI相关临床资料进行统计分析.结果 共分析该医院下肢骨折术后留置尿管患者322例, 发生CAUTI 50例, CAUTI发生率为15. 53％.Logistic多因素回归分析显示, 患者年龄、基础疾病、留置时间、麻醉方式、镇痛泵给药途径、卧床时间和骨折部位是下肢骨折术后留置尿管患者CAUTI发生的独立危险因素 (P ＜0.05) .结论 CAUTI骨科患者术后留置尿管最常见的医院感染之一, 应结合分析的危险因素采取针对性的措施.“,”Objective To study the risk factors of urinary catheter-associated urinary tract infection (CAUTI) in patients with indwelling ureter after lower limb fracture, and to provide evidence for prevention and control of CAUTI. Methods Retrospective investigation was used to analyze clinical data associated with patients with indwelling ureter after lower limb fracture. Results A total of 322 patients with urinary catheter indwelling after lower limb fracture in the hospital were analyzed, 50 of them had CAUTI, and the incidence rate of urinary tract infection was 15. 53％. Logistic multivariate regression analysis showed that age, basic disease, indwelling time, anesthesia, analgesic pump administration, bed rest time, and fracture site were independent risk factors for CAUTI in patients with indwelling ureter after lower limb fracture (P ＜ 0.05).Conclusion CAUTI is one of the most common nosocomial infections of indwelling urinary catheter in postoperative patients, and prevention and control measures should be evaluated based on the risk factors analyzed, and targeted measures should be taken.