Table 2.
Sputum culturing results and prevalence of CAP-causing bacteria.
| Characteristics | Frequency (n) | Proportion (%) |
|---|---|---|
| Sputum culture | ||
| Negative | 97 | 38.2 |
| Positive | 157 | 61.8 |
| CAP-causing factors | ||
| Enterobacteriaceae | ||
| Klebsiella pneumonia | 31 | 54.4 |
| Klebsiella pneumonia ESBL (+) | 5 | 8.8 |
| Escherichia coli | 4 | 7.0 |
| Escheriachia coli ESBL (+) | 7 | 12.3 |
| Enterobacter cloacae | 7 | 12.3 |
| Enterobacter aerogenes | 1 | 1.7 |
| Proteus mirabilis | 2 | 3.5 |
| Non-Enterobacteriaceae | ||
| Pseudomonas aeruginosa | 21 | 65.6 |
| Pseudomonas spp | 2 | 6.3 |
| Acinetobacter baumannii | 9 | 28.1 |
| Others gram-negative | ||
| Haemophilus influenza | 20 | 95.2 |
| Moraxella catarrhalis | 1 | 4.8 |
| Gram-positive | ||
| Streptococcus pneumonia | 32 | 69.6 |
| Staphylococcus aureus | 2 | 4.3 |
| Staphylococcus aureus MRSA | 10 | 21.7 |
| Enterococcus faecalis | 2 | 4.3 |
CAP = community-acquired pneumonia, ESBL = extended-spectrum β-lactamase, MRSA = methicillin-resistant Staphylococcus aureus.