Table 2. Distribution of Gram-negative Bloodstream Infection Pathogens.
| Total Cohort (N =598)a | Community-associated (n=221) | Healthcare-associated (n=331) | Hospital-acquired (n=46) | |
|---|---|---|---|---|
| E. coli | 330 (55) | 148 (67) | 167 (50) | 15 (33) |
| Klebsiella | 91 (15) | 42 (19) | 42 (13) | 7 (15) |
| Proteus | 53 (9) | 7 (3) | 40 (12) | 6 (13) |
| Pseudomonas | 43 (7) | 9 (4) | 31 (9) | 3 (7) |
| Enterobacter | 30 (5) | 3 (1) | 15 (5) | 12 (26) |
| Acinetobacter | 10 (2) | 1 (0) | 9 (3) | 0 (0) |
| Citrobacter | 9 (2) | 1 (0) | 7 (2) | 1 (0) |
| Serratia | 9 (2) | 3 (1) | 6 (2) | 0 (0) |
| Salmonella | 7 (1) | 2 (1) | 5 (2) | 0 (0) |
| Otherb | 16 (3) | 5 (2) | 9 (3) | 2 (4) |
Note: Data are number (%) of isolates unless otherwise indicated.
a
598 pathogens were isolated from 578 patients. 18 patients had >1 Gram-negative pathogen isolated.
b
Other organism types include Morganella, Providencia, Stenotrophomonas, Pasteurella, Alcaligenes. All had frequencies of <5 (1%) of bloodstream infection events.