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Catheter-associated urinary tract infections (CAUTIs) are the most common nosocomial infections in intensive care units (ICUs). The objectives of this study were to describe the incidence, aetiology, and risk factors of CAUTIs in ICUs and to determine whether concomitant nosocomial infections alter risk factors. Between April and October 2008, all adult catheterized patients admitted to the ICUs of Zonguldak Karaelmas University Hospital were screened daily, and clinical and microbiological data were collected for each patient. Two hundred and four patients were included and 85 developed a nosocomial infection. Among these patients, 22 developed a CAUTI alone, 38 developed a CAUTI with an additional nosocomial infection, either concomitantly or prior to the onset of the CAUTI, and 25 developed nosocomial infections at other sites. The CAUTI rate was 19.02 per 1000 catheter …