Table 2. Characteristics of patients with bacteremia caused by gram-negative bacteria, Veterans Health Administration System, United States, 2003–2013*.
| Characteristic | Total | Escherichia coli | Klebsiella spp. | Pseudomonas aeruginosa | Acinetobacter spp. |
|---|---|---|---|---|---|
| No. | 47,746 | 24,557 | 14,270 | 6,929 | 1,990 |
| Age, y, mean ± SD | 69.1 ± 2.2 | 69.8 ± 12.3 | 68.5 ± 12.1 | 68.5 ± 11.9 | 65.7 ± 12.6 |
| Sex, % | |||||
| M | 96.40 | 95.30 | 97.30 | 97.90 | 97.30 |
| F | 3.60 | 4.70 | 2.70 | 2.10 | 2.70 |
| Infection | |||||
| CA-CO | 20,210 (42.3) | 13,515 (55.0) | 4,802 (33.7) | 1,454 (21.0) | 439 (22.1) |
| HCA-CO | 13,932 (29.2) | 6,857 (27.9) | 4,242 (29.7) | 2,262 (32.7) | 571 (28.7) |
| HO | 13,604 (28.5) | 4,185 (17.0) | 5,226 (36.6) | 3,213 (46.4) | 980 (49.3) |
| HO (ICU onset) | 3,819 (8.0) | 838 (3.4) | 1,389 (9.7) | 1,174 (16.9) | 418 (21.0) |
*Values are no. (%) unless otherwise indicated. CA-CO, community-acquired, community-onset; HCA-CO, healthcare-associated, community-onset; HO, hospital-onset; ICU, intensive care unit.