Volume 17, Number 3—March 2011
CME ACTIVITY - Research
Staphylococcus aureus Infections in US Veterans, Maryland, USA, 1999–20081
LaRee A. Tracy
, Jon P. Furuno, Anthony D. Harris, Mary Singer, Patricia Langenberg, and Mary-Claire Roghmann
, Jon P. Furuno, Anthony D. Harris, Mary Singer, Patricia Langenberg, and Mary-Claire Roghmann
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.
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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