Table 4 Isolates in respiratory samples of bacteremic and nonbacteremic nosocomial pneumonia episodes
Isolate | Bacteremic (n= 117) | Nonbacteremic (n= 378) | P value |
|---|---|---|---|
Gram-positive | |||
MSSA | 13 (11.1) | 55 (15.6) | 0.29 |
MRSA | 21 (18) | 48 (12.7) | 0.19 |
Streptococcus pneumoniae | 2 (1.8) | 17 (4.5) | 0.29 |
Gram-negative | |||
Haemophilus influenzae | 2 (1.8) | 22 (5.8) | 0.13 |
Pseudomonas aeruginosa | 17 (14.5) | 67 (17.7) | 0.51 |
Acinetobacter baumannii | 22 (18.8) | 47 (12.4) | 0.11 |
Escherichia coli | 8 (6.8) | 39 (10.3) | 0.34 |
Enterobacter species | 7 (6) | 22 (5.8) | 0.89 |
Klebsiella pneumoniae | 15 (12.8) | 22 (5.8) | 0.02 |
Proteus species | 2 (1.8) | 9 (2.4) | 0.98 |
Serratia species | 1 (1) | 7 (1.9) | 0.8 |
Moraxella species | 0 (0) | 1 (0.3) | 0.12 |
Stenotrophomonas maltophilia | 4 (3.5) | 9 (2.4) | 0.75 |
Morganella morgagnii | 0 (0) | 2 (0.5) | 0.03 |
Citrobacter species | 0 (0) | 3 (0.8) | < 0.99 |
Burkholderia cepacia | 0 (0) | 1 (0.3) | 0.12 |
Other GNB | 1 (1) | 5 (1.3) | < 0.99 |
Other anaerobic | 1 (1) | 2 (0.5) | 0.09 |