Table 2.
Organisms detected in patients with LRTI, LRTI with CAP and LRTI without CAP
| Organisms | LRTI (n = 3104) |
LRTI with CAP (n = 141) |
LRTI without CAP (n = 2963) |
p-value |
|---|---|---|---|---|
| n (%) | n (%) | n (%) | ||
| Bacteria | ||||
| Streptococcus pneumoniae | 172 (5.5) | 13 (9.2) | 159 (5.4) | 0.043 |
| Haemophilus influenzae | 167 (5.4) | 20 (14.2) | 147 (5.0) | <0.001 |
| Mycoplasma pneumoniae | 150 (4.8) | 6 (4.3) | 144 (4.9) | 0.738 |
| Chlamydia pneumoniae | 165 (5.3) | 7 (5.0) | 158 (5.3) | 0.843 |
| Bordetella pertussis | 95 (3.1) | 4 (2.8) | 91 (3.1) | 1.000a |
| Legionella pneumophila | 6 (0.2) | 1 (0.7) | 5 (0.2) | 0.236a |
| Any of the above bacteria | 655 (21.1) | 42 (29.8) | 613 (20.7) | 0.010 |
| Viruses | ||||
| Rhinovirus | 623 (20.1) | 20 (14.2) | 603 (20.4) | 0.066 |
| Influenza virus A/B | 307 (9.9) | 11 (7.8) | 296 (10.0) | 0.378 |
| Coronavirus | 231 (7.4) | 6 (4.3) | 225 (7.6) | 0.134 |
| Respiratory syncytial virus | 144 (4.6) | 4 (2.8) | 140 (4.7) | 0.289 |
| Human metapneumovirus | 138 (4.4) | 9 (6.4) | 129 (4.4) | 0.264 |
| Parainfluenza viruses 1–4 | 81 (2.6) | 4 (2.8) | 77 (2.6) | 0.786a |
| Human adenovirus | 41 (1.3) | 5 (3.5) | 36 (1.2) | 0.037a |
| Polyomaviruses | 69 (2.2) | 2 (1.4) | 69 (2.3) | 0.769a |
| Bocavirus | 18 (0.6) | 0 (0.0) | 18 (0.6) | 1.000a |
| Any of the above viruses | 1494 (48.1) | 53 (37.6) | 1441 (48.7) | 0.010 |
Abbreviations: CAP, community-acquired pneumonia; LRTI, lower respiratory tract infection.
a
Fisher's Exact test.