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Volume 16, Number 9—September 2010

CME ACTIVITY

Illicit Drug Use and Risk for USA300 Methicillin-Resistant Staphylococcus aureus Infections with Bacteremia

Kristen M. KreiselComments to Author , J. Kristie Johnson, O. Colin Stine, Michelle D. Shardell, Eli N. Perencevich, Alan J. Lesse, Fred M. Gordin, Michael W. Climo, and Mary-Claire Roghmann
Author affiliations: Author affiliations: University of Maryland, Baltimore, Maryland, USA (K.M. Kreisel, J.K. Johnson, O.C. Stine, M.D. Shardell, E.N. Perencevich, M.-C. Roghmann); VA Maryland Health Care System, Baltimore (K.M. Kreisel, E.N. Perencevich, M.-C. Roghmann); VA Western New York Healthcare System, Buffalo, New York, USA (A.J. Lesse); University at Buffalo, Buffalo (A.J. Lesse); Washington DC VA Medical Center, Washington, DC, USA (F.M. Gordin); George Washington University, Washington (F.M. Gordin); Hunter Holmes McGuire VA Medical Center, Richmond, VA, USA (M.W. Climo); Medical College of Virginia at Virginia Commonwealth University, Richmond (M.W. Climo)

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Table 5

Independent risk factors for USA300 MRSA bacteremia among 300 veterans at 4 Veterans Affairs medical centers, USA, 2004–2008*

Variable Adjusted RR (95% CI) p value
Illicit drug use 3.00 (1.88–4.36) <0.0001
Late year of presentation† 1.56 (1.03–2.48) 0.04

*MRSA, methicillin-resistant Staphylococcus aureus; RR, relative risk; CI, confidence interval.
†Year of presentation stratified into 2 periods: early (January 1, 2004–March 31, 2006) and late (April 1, 2006–June 30, 2008).

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