Table 2.
Distribution of Gram-Positive Antibiotic-resistant Pathogens by Setting, Culture Source, and Quarter
| Characteristic | Staphylococcus aureus | Streptococcus pneumoniae | ||||
|---|---|---|---|---|---|---|
| Tested | MRSA (%) | Tested | Macrolide-NS (%) | Penicillin-NS (%) | ESC-NS (%) | |
| Overall | 989 796 | 498 012 (50.3%) | 74 554 | 28 421 (38.1%) | 13 240 (17.8%) | 2470 (3.3%) |
| Setting | ||||||
| Ambulatory | 501 644 | 236 435 (47.1%) | 25 666 | 10 303 (40.1%) | 4993 (19.5%) | 959 (3.7%) |
| Inpatient | 488 152 | 261 577 (53.6%) | 48 888 | 18 118 (37.1%) | 8247 (16.9%) | 1511 (3.1%) |
| Culture Source | ||||||
| Respiratory | 106 170 | 56 691 (53.4%) | 34 554 | 15 384 (44.5%) | 7437 (21.5%) | 1373 (4.0%) |
| Nonrespiratory | 883 626 | 441 321 (49.7%) | 40 000 | 13 037 (31.2%) | 5803 (17.5%) | 1097 (3.1%) |
| Quarter | ||||||
| Q1 | 230 928 | 116 857 (50.6%) | 24 286 | 9328 (38.4%) | 4271 (17.6%) | 825 (3.4%) |
| Q2 | 239 865 | 121 466 (50.6%) | 18 190 | 6871 (37.8%) | 3224 (17.7%) | 579 (3.2%) |
| Q3 | 266 029 | 133 085 (50.0%) | 11 764 | 4587 (39.0%) | 2300 (19.6%) | 451 (3.8%) |
| Q4 | 252 974 | 126 604 (50.1%) | 20 314 | 7635 (37.6%) | 3445 (17.0%) | 615 (3.0%) |
Abbreviations: ESC, extended-spectrum cephalosporins; MRSA, methicillin-resistant S aureus; NS, not susceptible.