Table 3.
Microbiologic pathogens isolated from the lower respiratory secretions of patients in the prospective and retrospective cohorts.
| Pathogens | Prospective (n = 198) |
Retrospective (n = 173) |
p
Value |
|---|---|---|---|
| Multidrug-resistant bacteria | 20 (10.1) | 22 (12.7) | 0.4276 |
| Gram-positive bacteria | |||
| Methicyllin-resistant Staphylococcus aureus | 3 (1.5) | 3 (1.7) | 0.8675 |
| Methicillin-susceptible Staphylococcus aureus | 7 (3.5) | 15 (8.7) | 0.0367 |
| Staphylococcus epidermidis | 7 (3.5) | 15 (8.7) | 0.0367 |
| Vancomycin-resistant enterococcus | 0 (0.0) | 2 (1.2) | 0.1292 |
| Streptococcus pneumoniae | 6 (3.0) | 10 (5.8) | 0.1933 |
| Gram-negative bacteria | |||
| Acinetobacter baumanii | 13 (6.6) | 5 (2.9) | 0.1002 |
| Pseumonas aeruginosa | 4 (2.0) | 5 (2.9) | 0.5869 |
| Klebsiella pneumoniae (Enterobacteriaceae) | 16 (8.1) | 25 (14.4) | 0.0509 |
| Other Enterobacteriaceae | 21 (10.6) | 31 (17.9) | 0.0429 |
| Haemophilus influenzae | 6 (3.0) | 10 (5,8) | 0.1933 |
| Stenotrophomonas maltofila | 7 (3.5) | 11 (6.4) | 0.2068 |
| Candida albicans | 4 (2.0) | 0 (0.0) | 0.0601 |
Results presented as numbers and percentages.