分析导尿管相关尿路感染的易发因素，探讨最佳的预防与护理措施。

对本院2013年10月至2014年10月收治的130例导尿患者的尿路感染发生率相关因素如留置导尿管天数、集尿袋更换时间、导尿管更换时间进行对比分析，提出预防与最佳护理措施。

尿管不同留置时间相对应的感染率差异具有统计学意义（χ² = 3.104、P = 0.000）；其中，住院患者留置尿管时间较长，导尿管感染的几率显著上升；且集尿袋的更换时间最好是2～7 d，不同更换时间患者感染率差异具有统计学意义（χ² = 4.092、P = 0.003）；不同导尿管更换时间患者感染率差异具有统计学意义（χ² = 3.883、P = 0.001）。患者的导尿管更换时间最好是每2周更换1次，每周更换及≥ 5周更换感染率增加；不同年龄患者感染率差异具有统计学意义（χ² = 4.792、P = 0.000），留置尿管的患者中年龄小于30岁者CAUTI感染率为12.5%，而年龄≥ 60岁者CAUTI感染率为50.00%。

导尿管相关尿路感染与导尿管留置时间、集尿管更换时间、导尿管更换时间、年龄分布密切相关，故预防CAUTI感染以及相关护理应针对这些环节采取相应措施。

To investigate the predisposing factors of guiding catheter associated urinary tract infection (CAUTI), and to explore the best prevention and nursing measures.

Total of 130 patients with urethral catheterization in our hospital from October 2013 to October 2014 were selected. The risk factors of CAUTI such as the indwelling catheter days, urine collection bag replacement time and catheter replacement time were analyzed, respectively.

There were significance differences of infection rates in different retention times (χ²= 3.104, P = 0.000). And the hospitalized patients with indwelling catheter had significantly increased rate of guiding catheter infection; the best replacement time of urine collection bags were 2-7 d, and the rates of infection with different replacement time were with significant differences (χ²= 4.092, P = 0.003). The infection rates between the different catheter replacement time were with significant differences (χ²= 3.883, P = 0.001). The best catheter replacement time was once every 2 weeks, if with the weekly change and over 5 weeks change, the infection rates were increased significantly. The infection rates were significantly different in different age groups (χ²= 4.792, P = 0.000). Among the patients with indwelling catheter, infection rate of CAUTI was 12.5% which the patients younger than 30 years old ; which was 50% for the patients ≥ 60 years old.

The infection of catheter associated urinary tract were closely related to the indwelling catheter time, collecting duct replacement time, catheter replacement time and age distribution. The corresponding prevention and care measures should be taken to avoid the occurrence of CAUTI.