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Potential Misclassification of Urinary Tract–Related Bacteremia Upon Applying the 2015 Catheter-Associated Urinary Tract Infection Surveillance Definition From the National Healthcare Safety Network

  • M. Todd Greene (a1) (a2), David Ratz (a2) (a3), Jennifer Meddings (a1) (a2), Mohamad G. Fakih (a4) and Sanjay Saint (a1) (a2) (a3)...

The Centers for Disease Control and Prevention recently updated the surveillance definition of catheter-associated urinary tract infection to include only urine culture bacteria of at least 1×105 colony-forming units/mL. Our findings suggest that the new surveillance definition may fail to capture clinically meaningful catheter-associated urinary tract infections.

Infect. Control Hosp. Epidemiol. 2016;37(4):469–471

Corresponding author
Address correspondence to M. Todd Greene, PhD, MPH, University of Michigan, Division of General Medicine, 2800 Plymouth Rd., NCRC Bldg. 16, Rm. 470C, Ann Arbor, MI 48109 (
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1. Centers for Disease Control and Prevention. Urinary tract infection (catheter-associated urinary tract infection [CAUTI] and non-catheter-associated urinary tract infection [UTI]) and other urinary system infection [USI]) events. CDC website. Published 2015. Accessed December 30, 2015.
2. Hooton, TM, Bradley, SF, Cardenas, DD, et al. Diagnosis, prevention, and treatment of catheter-associated urinary tract infection in adults: 2009 International Clinical Practice Guidelines from the Infectious Diseases Society of America. Clin Infect Dis 2010;50:625663.
3. Centers for Disease Control and Prevention. CAUTI: Definition Changes for 2015. YouTube website. Published 2015. Accessed December 30, 2015.
4. Greene, MT, Chang, R, Kuhn, L, et al. Predictors of hospital-acquired urinary tract–related bloodstream infection. Infect Control Hosp Epidemiol 2012;33:10011007.
5. Saint, S. Clinical and economic consequences of nosocomial catheter-related bacteriuria. Am J Infect Control 2000;28:6875.
6. Scott, R. The direct medical costs of healthcare-associated infections in U.S. hospitals and the benefits of prevention. CDC website. Published 2009. Accessed December 30, 2015.
7. Umscheid, CA, Mitchell, MD, Doshi, JA, Agarwal, R, Williams, K, Brennan, PJ. Estimating the proportion of healthcare-associated infections that are reasonably preventable and the related mortality and costs. Infect Control Hosp Epidemiol 2011;32:101114.
8. Zimlichman, E, Henderson, D, Tamir, O, et al. Health care-associated infections: a meta-analysis of costs and financial impact on the US health care system. JAMA Int Med 2013;173:20392046.
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Infection Control & Hospital Epidemiology
  • ISSN: 0899-823X
  • EISSN: 1559-6834
  • URL: /core/journals/infection-control-and-hospital-epidemiology
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