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Volume 12, Number 12—December 2006

Dispatch

Community-associated Methicillin-resistant Staphylococcus aureus and Healthcare Risk Factors

R. Monina Klevens*Comments to Author , Melissa A. Morrison*, Scott K. Fridkin*, Arthur Reingold†, Susan Petit‡, Ken Gershman§, Susan Ray¶, Lee H. Harrison#, Ruth Lynfield**, Ghinwa Dumyati††, John M. Townes‡‡, Allen S. Craig§§, Gregory Fosheim*, Linda K. McDougal*, Fred C. Tenover*, and for the Active Bacterial Core Surveillance of the Emerging Infections Program Network
Author affiliations: *Centers for Disease Control and Prevention, Atlanta, Georgia, USA; †University of California, Berkeley, California, USA; ‡Connecticut Department of Health, Hartford, Connecticut, USA; §Colorado Emerging Infections Program, Denver, Colorado, USA; ¶Grady Memorial Hospital, Atlanta, Georgia, USA; #Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA; **Minnesota Department of Health, Minneapolis, Minnesota, USA; ††University of Rochester, Rochester, New York, USA; ‡‡Oregon Health Science University, Portland, Oregon, USA; §§Tennessee Department of Health, Nashville, Tennessee, USA

Main Article

Table 1

Selected characteristics among case-patients with invasive MRSA, by healthcare-related risk factors (HRFs), Active Bacterial Core Surveillance, January 2004–February 2006*

Characteristic With HRFs, no. (%)
Without HRFs, no. (%)
Healthcare-associated, n = 2,535 Healthcare-associated, community onset, n = 5,353 Community-associated,† n = 1,259
Median age, y 62‡ 62‡ 46
Pneumonia 413 (16.3) 685 (12.8)‡ 190 (15.1)
Endocarditis 72 (2.8)‡ 345 (6.4)‡ 158 (12.6)
Died 687 (27.1)‡ 845 (15.8)‡ 131 (10.4)

*MRSA, methicillin-resistant Staphylococcus aureus; HRFs, healthcare-related risk factors.
†Patients with community-associated infections were those who did not have HRFs; these patients were used as reference.
‡p<0.05 for χ2 test for categorical variables; Wilcoxon rank sum for age.

*MRSA, methicillin-resistant Staphylococcus aureus; HRFs, healthcare-related risk factors.
†Patients with community-associated infections were those who did not have HRFs; these patients were used as reference.
‡p<0.05 for χ2 test for categorical variables; Wilcoxon rank sum for age.

Main Article

1Joelle Nadle, Elizabeth Partridge, Pam Daily, Gretchen Rothrock, Steve Burnite, Deborah Aragon, Nicole Haubert, Allison Daniels, Jonathan Schwartz, Jim Hadler, Zack Fraser, Nancy Barrett, Wendy Baughman, Monica Farley, Janine Ladson, James Howgate, Emily McMahan, Laurie Thompson Sanza, Janice Langford, Kathleen Shutt, Kathy Como-Sabetti, Jessica Buckand, Kathy Harriman, Nana Bennett, Anita Gellert, Paul Malpiedi, Michael Emerson, Karen Stefonek, Michelle Barber, Ann Thomas, Brenda Barnes, Terri McMinn, Jane Conners, Melinda Eady, William Schaffner, Chris Van Beneden, Tami Skoff, Carolyn Wright, Emily Weston, Catherine Rebmann, and Robert Pinner

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