TABLE 2.
Demographics of patients with P. aeruginosa and non-P. aeruginosa bloodstream infections at Duke University Medical Center from 2002 to 2015, stratified by bacterial group
| Parameter | No. (%) of patients |
Pa | |
|---|---|---|---|
| P. aeruginosa (n = 158) | Non-P. aeruginosa (n = 2,501) | ||
| Mean age (yrs) | 61.9 | 59.7 | 0.13 |
| Race/ethnicity | 0.001 | ||
| White | 121 (77) | 1,581 (63) | |
| Black | 29 (18) | 832 (33) | |
| Hispanic | 0 (0) | 13 (1) | |
| Native American | 0 (0) | 21 (1) | |
| Asian | 1 (1) | 26 (1) | |
| Other/unknown | 7 (4) | 38 (2) | |
| Female | 64 (41) | 1,134 (45) | 0.25 |
| Medical history | |||
| Recent glucocorticoid use | 59 (37) | 572 (23) | 0.001 |
| Neoplasm | 64 (41) | 785 (31) | 0.02 |
| Diabetes mellitus | 53 (34) | 933 (37) | 0.35 |
| Transplant | 39 (25) | 271 (11) | <0.0001 |
| Surgery in past 30 days | 48 (30) | 656 (26) | 0.26 |
| Hemodialysis dependence | 13 (8) | 361 (14) | 0.03 |
| Rheumatologic disorder | 6 (4) | 63 (3) | 0.30 |
| Site of acquisition | <0.0001 | ||
| Community acquired | 78 (49) | 1,815 (73) | |
| Hospital acquired | 80 (51) | 674 (27) | |
| Source of infection | <0.0001 | ||
| Pneumonia | 39 (25) | 192 (8) | |
| Urine/pyelonephritis | 30 (19) | 488 (20) | |
| Abscess | 6 (4) | 112 (4) | |
| Line associated | 14 (9) | 436 (17) | |
| Skin/soft tissue | 10 (6) | 249 (10) | |
| Biliary tract | 4 (3) | 95 (4) | |
| Other | 21 (13) | 357 (14) | |
| Source not identified | 34 (22) | 572 (23) | |
| Mean total APACHE-II score | 16.3 | 14.4 | 0.0003 |
| Mean chronic APACHE-II score | 4.2 | 3.6 | 0.0003 |
a
Statistically significant values are indicated in boldface.