TABLE 4.
Summary of Microbiological Culture Results for 918 Patients Receiving Therapy
| Variable | No. (%) | |
|---|---|---|
| Number of cultures | ||
| 0 | 98 | (10.7) |
| 1–5 | 616 | (74) |
| >5 | 141 | (15.3) |
| Specimen source (if ≥1 culture) | 820 | (100) |
| Blood | 648 | (79.0) |
| Urine | 504 | (61.5) |
| Sputum | 215 | (26.2) |
| Other | 354 | (43.2) |
| Culture timing | ||
| Prior to or on first day of therapy | 649 | (79.1) |
| After start of therapy | 171 | (20.9) |
| Organism isolated | ||
| Total | 404 | (49.3) |
| Staphylococcus aureus | 76 | (18.8) |
| Coagulase-negative staphylococci | 72 | (17.8) |
| Escherichia coli | 56 | (13.9) |
| Enterococcus spp. | 47 | (11.6) |
| Pseudomonas aeruginosa | 42 | (10.4) |
| Klebsiella pneumoniae | 33 | (8.2) |
| Clostridium difficile | 24 | (5.9) |
| Enterobacter spp. | 14 | (3.5) |
| Acinetobacter baumannii | 8 | (2.0) |
| Polymicrobial | 119 | (29.5) |
| Other organism | 140 | (34.6) |