Table 2.
Gram-negative bacteria (GNB) in blood cultures taken from patients in intensive care units
| No (%) of isolated bacteria in blood cultures in: |
|||
|---|---|---|---|
| GNB | gentamicin period (n = 142)† | amikacin period (n = 155)† | P* |
| Pseudomonas aeruginosa | 9 (6.4) | 9 (5.8) | >0.950 |
| Klebsiella pneumoniae | 5 (3.5) | 3 (1.9) | 0.157 |
| Acinetobacter spp. | 5 (3.5) | 2 (1.3) | 0.083 |
| Escherichia coli | 3 (2.1) | 3 (1.9) | >0.950 |
| Proteus mirabilis | 2 (1.4) | 0 | 0.157 |
| Enterobacter spp. | 0 | 3 (1.9) | 0.083 |
| Other | 8 (5.6) | 4 (2.6) | 0.046 |
| All GNB | 32 (22.5) | 24 (15.5) | 0.005 |
*Gentamicin vs amikacin period, z-test of proportions.
†n – number of blood cultures.