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Volume 10, Number 11—November 2004


Enhanced Identification of Postoperative Infections among Inpatients

Deborah S. Yokoe*Comments to Author , Gary A. Noskin†, Susan M. Cunningham†, Gianna Zuccotti‡, Theresa Plaskett‡, Victoria J. Fraser§, Margaret A. Olsen§, Jerome I. Tokars¶, Steven Solomon¶, Trish M. Perl#, Sara E. Cosgrove#, Richard S. Tilson*, Maurice Greenbaum**, David C. Hooper††, Kenneth E. Sands‡‡, John Tully§§, Loreen A. Herwaldt¶¶, Daniel J. Diekema¶¶, Edward S. Wong##, Michael Climo##, and Richard Platt***
Author affiliations: *Brigham and Women's Hospital, Boston, Massachusetts, USA; †Northwestern University, Chicago, Illinois, USA; ‡Memorial Sloan-Kettering Cancer Center, New York, New York, USA; §Washington University School of Medicine, St. Louis, Missouri, USA; ¶Centers for Disease Control and Prevention, Atlanta, Georgia, USA; #Johns Hopkins Medical Institutions, Baltimore, Maryland, USA; **North Shore Medical Center-Salem Hospital, Salem, Massachusetts, USA; ††Massachusetts General Hospital, Boston, Massachusetts, USA; ‡‡Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA; §§Mount Auburn Medical Center, Cambridge, Massachusetts, USA; ¶¶University of Iowa Carver College of Medicine, Iowa City, Iowa, USA; ##McGuire Veterans Affairs Medical Center, Richmond, Virginia, USA; ***Harvard Pilgrim Health Care, Boston, Massachusetts, USA

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Table 2

SSI rates after CABG procedures, cesarean delivery, and breast proceduresa,b

Procedure/phase SSI rates detected by
% routine surveillance
(SSI/ procedures) [95% CI] Any method %c
(SSI/procedures) [95% CI]
Phase 1 4.9 (112/2,267)
[4.1%–5.9%] 6.3 (142/2,267)
Phase 2 4.6 (298/6,472)
[4.1%–5.1%] 7.7 (501/6,472)
Combined 4.7 (410/8,739) 7.4 (643/8,739)
Cesarean delivery
Phase 1 1.6 (43/2,659)
[1.2%–2.2%] 4.1 (110/2,659)
Phase 2 1.6 (49/3,065)d
[1.2%–2.1%] 5.5 (263/4,740)
Combined 1.6 (92/5,724) 5.0 (373/7,399)
Breast procedures
Phase 1 0.7 (10/1,477)
[0.3%–1.2%] 0.9 (14/1,477)
Phase 2 0.4 (7/1,765)d
[0.2%–0.8%] 2.3 (110/4,698)
Combined 0.5 (17/3,242) 2.0 (124/6,175)

aBased on routine surveillance and routine surveillance plus screening for antimicrobial drug exposure, discharge diagnosis codes, or both.
bSSI, surgical site infection; CABG, coronary artery bypass graft; CI, confidence interval.
cRoutine, antimicrobial exposure, diagnosis codes.
dThe total number of procedures is noted for the hospitals that had performed routine surveillance.

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