Table 1

Demographic and clinical characteristics, and microbiology results of patients with community-acquired pneumonia

Patient characteristicsControls
unilateral BALF, n=24
ICU cohort
unilateral BALF, n=8
ED cohort
bilateral BALF, n=7
Age, years (mean±SE)65.1±2.063.9±3.752.4±6.3
Male sex (%)17 (71)2 (25)3 (43)
APACHE-II score (mean±SE)Not determined27.7±1.515.3±4.7
28-day mortality (%)1 (4)2 (25)0 (0)
Microbiology
 Streptococcus pneumonia34
 Mycoplasma pneumoniae1
 Haemophilus influenza1
 Acinetobacter baumannii1
 Legionella pneumophila1
 Pneumocystis jeroveci1
 No micro-organism identified21
  • From control patients, BALF was obtained from the right middle lobe. From ICU patients BALF was obtained from the site of infection as visualised on the chest X-ray. From ED patients, BALF was obtained from both the infected site and the contralateral lung.

  • BALF, bronchoalveolar lavage fluid; ED, emergency department; ICU, intensive care unit.