The full content of Annals is available to subscribers

Subscribe/Learn More  >
Articles |

Does Asymptomatic Bacteriuria Predict Mortality and Does Antimicrobial Treatment Reduce Mortality in Elderly Ambulatory Women?

Elias Abrutyn, MD; Jana Mossey, PhD; Jesse A. Berlin, ScD; Jerome Boscia, MD; Matthew Levison, MD; Peter Pitsakis, MS; and Donald Kaye, MD
[+] Article, Author, and Disclosure Information

From the Medical College of Pennsylvania, Philadelphia Department of Veterans Affairs Medical Center, and the University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania. Requests for Reprints: Elias Abrutyn, MD, Infectious Diseases, Department of Veterans Affairs Medical Center (111 ID), 38th and Woodland Avenues, Philadelphia, PA 19104-4594. Acknowledgments: The authors thank Karen Cassel, Anne Dreibelbis, Caroline J. Fediw, Janet Lennett, Arthur J. Osborne, and Audrey Stein for their assistance and the residents and staff of the communities without whom this study would not have been possible: The Beaumont, Cadbury, Cathedral Village, Cokesbury Village, Dunwoody Village, Foulkeways at Gwynedd, Granite Farms Estates, Gwynedd Estates, Lima Estates, Logan Square East, Marins Run, Medford Leas, Normandy Farm Estates, Pennswood Village, Philadelphia Geriatric Center, Pine Run, Protestant Home of Philadelphia, Rydal Park, Spring House Estates, Springfield, Stapeley in Germantown, and Waverly Heights. Grant Support: In part by National Institutes of Health TNH award AG03934.

Copyright ©2004 by the American College of Physicians

Ann Intern Med. 1994;120(10):827-833. doi:10.7326/0003-4819-120-10-199405150-00003
Text Size: A A A

Objective: To determine whether asymptomatic bacteriuria in elderly ambulatory women is a marker of increased mortality and, if so, whether it is because of an association with other determinants of mortality or because asymptomatic bacteriuria is itself an independent cause, the removal of which might improve longevity.

Design: A cohort study and a controlled clinical trial of the effect of antimicrobial treatment.

Setting: A geriatric center and 21 continuing care retirement communities.

Participants: Women without urinary tract catheters.

Measurements: Urine cultures every 6 months (the same organism at 105 colony-forming units or more per mL on two midstream urine specimens defined asymptomatic bacteriuria), comorbidity, and mortality.

Results: In the observational study, infected residents (n = 318) were older, and sicker, and had higher mortality (18.7 per 100 000 resident-days) than uninfected residents (n = 1173; 10.1 per 100 000 resident-days). However, in a multivariate Cox analysis, infection was not related to mortality (relative risk, 1.1; P > 0.2), whereas age at entry and self-rated health (score 1 [excellent] to 4 [bad or poor]) were strong predictors. In the clinical trial, mortality in 166 treated residents (13.8 per 100 000 resident-days) was comparable to that of 192 untreated residents (15.1 per 100 000 resident-days); the relative rate was 0.92 (95% CI, 0.57 to 1.47). The cure rates among treated and untreated residents were 82.9% and 15.6%, respectively.

Conclusion: Urinary tract infection was not an independent risk factor for mortality, and its treatment did not lower the mortality rate. Screening and treatment of asymptomatic bacteriuria in ambulatory elderly women to decrease mortality do not appear warranted.


Grahic Jump Location
Figure 1.
Mortality in patients treated with antimicrobial agents and controls.P

( > 0.2).

Grahic Jump Location




Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).


Submit a Comment/Letter
Submit a Comment/Letter

Summary for Patients

Clinical Slide Sets

Terms of Use

The In the Clinic® slide sets are owned and copyrighted by the American College of Physicians (ACP). All text, graphics, trademarks, and other intellectual property incorporated into the slide sets remain the sole and exclusive property of the ACP. The slide sets may be used only by the person who downloads or purchases them and only for the purpose of presenting them during not-for-profit educational activities. Users may incorporate the entire slide set or selected individual slides into their own teaching presentations but may not alter the content of the slides in any way or remove the ACP copyright notice. Users may make print copies for use as hand-outs for the audience the user is personally addressing but may not otherwise reproduce or distribute the slides by any means or media, including but not limited to sending them as e-mail attachments, posting them on Internet or Intranet sites, publishing them in meeting proceedings, or making them available for sale or distribution in any unauthorized form, without the express written permission of the ACP. Unauthorized use of the In the Clinic slide sets will constitute copyright infringement.


Buy Now for $32.00

to gain full access to the content and tools.

Want to Subscribe?

Learn more about subscription options

Related Articles
Related Point of Care
Topic Collections
PubMed Articles
Forgot your password?
Enter your username and email address. We'll send you a reminder to the email address on record.