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Volume 17, Number 3—March 2011

CME ACTIVITY

Staphylococcus aureus Infections in US Veterans, Maryland, USA, 1999–20081

LaRee A. TracyComments to Author , Jon P. Furuno, Anthony D. Harris, Mary Singer, Patricia Langenberg, and Mary-Claire Roghmann
Author affiliations: Author affiliations: University of Maryland, Baltimore, Maryland, USA (L.A. Tracy, J.P. Furuno, A.D. Harris, P. Langenberg, M.-C. Roghmann); Veterans Administration Maryland Health Care System, Baltimore (M.-C. Roghmann); US Food and Drug Administration, Silver Spring, Maryland, USA (M. Singer)

Main Article

Table 1

Characteristics of Staphylococcus aureus infections, Veterans Affairs Maryland Health Care System, fiscal years 1999–2008*

Characteristic Invasive S. aureus infections
Noninvasive S. aureus infections
Total,
n = 858 Onset
Susceptibility
Total,
n = 2,816 Onset
Susceptibility†
H,
n = 381 C,
n = 477 MRSA,
n = 449 MSSA,
n = 409 H,
n = 778 C,
n = 2,038 MRSA,
n = 1,807 MSSA,
n = 1,006
No. patients 800 359 441 415 385 2,511 708 1,803 1,600 908
Age, y‡
Mean (SD) 64 (14) 67 (13) 61 (13) 65 (13) 62 (14) 62 (14) 68 (13) 60 (14) 62 (14) 62 (14)
  Median 64 70 60 65 61 61 71 58 61 60
  Range
28–98
28–98
30–94

28–97
29–98

19–94
19–93
22–94

23–94
19–93
Male sex,
no. (%)
782 (98)
370 (97)
469 (98)

399 (98)
440 (98)

2,436 (97)
691 (98)
1,745 (97)

1,552 (97)
881 (97)
Race, no. (%)
Black 393 (49) 154 (43) 239 (54) 190 (48) 203 (53) 1,212 (48) 289 (41) 923 (51) 781 (49) 429 (47)
White 387 (48) 200 (56) 187 (42) 217 (52) 170 (44) 1,186 (47) 412 (58) 774 (43) 745 (47) 440 (49)
Other§ 20 (3) 5 (1) 15 (3) 8 (2) 12 (3) 113 (5) 7 (1) 106 (6) 74 (5) 39 (4)

*MRSA, methicillin-resistant S. aureus. MSSA, methicillin-susceptible S. aureus; H, hospital; C, community.
†Methicillin-susceptibility unknown for 3 patients with noninvasive S. aureus infections.
‡Age unknown for 8 patients with noninvasive S. aureus infections.
§Includes missing data. Other/unknown race not included in test.

Main Article

1This study was presented in part at the 49th Annual Interscience Conference on Antimicrobial Agents and Chemotherapy; 2009 Sep 11–15; San Francisco, California, USA (abstracts 1217 and 3136).

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