Table 1. Baseline demographics and characteristics of patients receiving antibiotics.
| Characteristic | Study population (n = 88) |
|---|---|
| Age (years), median, (IQR) | 41 (30–53) |
| Male, n (%) | 46 (53) |
| Serum creatinine concentration (mg/dL), median (IQR) | 0.87 (0.57–2.47) |
| Cockcroft-Gault creatinine clearance (mL/min), median (IQR) | 90.9 (31.8–146.4) |
| White blood cell count (x10⁹/L) | 9.2 ± 8.7 |
| Cultures obtained, n (%)a | 28 (32) |
| Urine | 16 (18) |
| Blood | 4 (5) |
| Sputum | 4 (5) |
| Unknown | 6 (7) |
| Organism isolated, n | |
| Unspeciated gram positive bacteria | 6 |
| Unspeciated gram negative rods | 1 |
| Escherichia coli | 3 |
| Enterobacter spp. | 2 |
| Proteus spp. | 1 |
| Candida spp. | 4 |
| Anti-infective ordered, n (%) | |
| Cefotaxime | 45 (35.7) |
| Ceftriaxone | 28 (22.2) |
| Metronidazole | 14 (11.1) |
| Erythromycin | 9 (7.1) |
| Penicillin | 6 (4.8) |
| Amoxicillin | 4 (3.2) |
| Azithromycin | 4 (3.2) |
| Ciprofloxacin | 4 (3.2) |
| Cefuroxime | 2 (1.6) |
| Amphotericin B | 1 (0.8) |
| Chloramphenicol | 1 (0.8) |
| Clarithromycin | 1 (0.8) |
| Cloxacillin | 1 (0.8) |
| Doxycycline | 1 (0.8) |
| Fluconazole | 1 (0.8) |
| Gentamicin | 1 (0.8) |
| Mebendazole | 1 (0.8) |
| Nitrofurantoin | 1 (0.8) |
| Tinidazole | 1 (0.8) |
| Number of antimicrobials ordered per patient | |
| 1 | 57 (64.8) |
| 2 | 28 (31.8) |
| 3 | 2 (2.3) |
| 4 | 1 (1.1) |
a Two patients had both blood and urine cultures obtained.