Emerging Infectious Disease ISSN: 1080-6059

Use of Binary Cumulative Sums and Moving Averages in Nosocomial Infection Cluster Detection¹

Samuel M. Brown*

, James C. Benneyan†, Daniel A. Theobald‡, Kenneth Sands§, Matthew T. Hahn‡, Gail A. Potter-Bynoe¶, John M. Stelling#**, Thomas F. O'Brien#**, and Donald A. Goldmann¶

Author affiliations: *Massachusetts General Hospital, Boston, Massachusetts, USA; †Northeastern University, Boston, Massachusetts, USA; ‡Vecna Technologies, Inc., Hyattsville, Maryland, USA; §Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA; ¶Children's Hospital, Boston, Massachusetts, USA; #WHO Collaborating Center for Antimicrobial Resistance Surveillance, Boston, Massachusetts, USA; **Brigham and Women's Hospital, Boston, Massachusetts, USA;

Main Article

Figure 3

Cumulative sum test iteration detecting an outbreak of vancomycin-resistant enterococcus. Test parameters were p0 = 0.05, p1 = 0.15, α = 0.15, β = 0.2, and included enterococcal isolates from all body sites from the affected wards, excluding strains found during outbreak investigation.

Figure 3. Cumulative sum test iteration detecting an outbreak of vancomycin-resistant enterococcus. Test parameters were p₀ = 0.05, p₁ = 0.15, α = 0.15, β = 0.2, and included enterococcal isolates from all body sites from the affected wards, excluding strains found during outbreak investigation.

Main Article

¹ Portions of this research were presented at the 39th Annual Meeting of the Infectious Diseases Society of America (IDSA), San Francisco, California, USA, October 25–28, 2001.

Top of Page

The opinions expressed by authors contributing to this journal do not necessarily reflect the opinions of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.