Sputum culture | Invasive respiratory samples# | Blood culture | Others methods¶ | Urinary antigen test | ||
NCU | CU | |||||
Pneumococcal pneumonia | ||||||
Definitive (n=68) | ||||||
Blood culture | 0 | 0 | 28 | 0 | 23 | 28 |
Blood culture and respiratory samples | 12 | 5 | 17 | 0 | 17 | 17 |
Respiratory samples | 0 | 23 | 0 | 0 | 12 | 23 |
Probable (n=52) | 52 | 0 | 0 | 0 | 23 | 36 |
Nonpneumococcal pneumonia (n=107) | 30 | 15 | 5 | 62 | 5 | 7 |
Pneumonia by an unidentified pathogen (n=171) | 0 | 0 | 0 | 0 | 29 | 43 |
NCU: nonconcentrate urine
CU: concentrate urine
#: tracheobronchial aspiration, bronchoalveolar lavage, pleural puncture
¶: Legionella pneumophila antigen, serology