Agent | Patients n | CRP mean mg·dL−1 |
Typical bacterial pneumonia | 141 | 16 |
Streptococcus pneumoniae | 80 | 17.15 |
Haemophilus influenzae | 26 | 12.93 |
Other | 35 | 15.6 |
Legionella pneumophila pneumonia | 30 | 25.23 |
Atypical pneumonia | 52 | 12.64 |
Chlamydia pneumoniae | 20 | 11.74 |
Mycoplasma pneumoniae | 17 | 16.02 |
Coxiella burnetii | 15 | 10.02 |
Viral | 35 | 14.45 |
Total | 258 | 16.18 |
Patients with >1 pathogen identified | 80 | |
Pyogenic pneumonia# | 38 | 18.82 |
Pyogenic pneumonia+Legionella¶ | 2 | 14.9 |
Pyogenic pneumonia+atypical bacteria | 12 | 13.8 |
Pyogenic pneumonia+viral | 17 | 16.76 |
Viral pneumonia+Legionella¶ | 1 | 33.98 |
Viral pneumonia+atypical bacteria¶ | 6 | 12.9 |
Atypical pneumonia+Legionella¶ | 4 | 27.03 |
CAP of unknown aetiology | 383 | 14.01 |
CAP: community-acquired pneumonia. #: >1 microorganism isolated; ¶: not included in statistical analyses due to the small number of cases