A Multivariate Analysis of Risk Factors for Acquiring Bacteriuria in Patients With Indwelling Urinary Catheters for Longer Than 24 Hours

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Abstract
Data related to risk factors for catheter-acquired bacteriuria were collected prospectively on 112 patients consecutively catheterized for >24 hours at the Hadassah University Hospital. Logistic regression analysis indicated that factors independently associated (p7 days) of catheterization before infection occurred. The risk associated with catheterization outside the operating theater could be explained by its correlate, that is, catheterization for incontinence/obstruction as opposed to output measurement. Life-table analyses demonstrated that the daily risk for acquiring bacteriuria during the first six days of catheterization was higher among patients ultimately catheterized for ≥7 days than among those ultimately catheterized for < 7 days (P<0.05).