Table 5.
Respiratory viral infection
| Variable | Patient group |
||
|---|---|---|---|
| Exacerbated COPD | Stable COPD | Non-obstructed smokers | |
| No. patients | 136 | 68 | 16 |
| Respiratory viral screen positive (%) | 50 (36.8)a | 8 (11.8) | 2 (12.5) |
| Rhinovirus | 32 | 3 | 0 |
| Adenovirus | 10 | 4 | 1 |
| Influenza A H1 | 0 | 0 | 0 |
| Influenza A H3 | 3 | 0 | 0 |
| Influenza B | 0 | 0 | 0 |
| Metapneumovirus | 2 | 0 | 0 |
| Parainfluenza 1 | 0 | 0 | 0 |
| Parainfluenza 2 | 0 | 0 | 0 |
| Parainfluenza 3 | 5 | 0 | 1 |
| Coronavirus | 1 | 1 | 0 |
| RSV A | 1 | 0 | 0 |
| RSV B | 2 | 0 | 0 |
| Dual infections | |||
| Flu A H3 and Adv | 2 | 0 | 0 |
| Rhinovirus and adenovirus | 2 | 0 | 0 |
| Rhinovirus and parainfluenza 3 | 2 | 0 | 0 |
a
p < 0.0005 (respiratory viral detection in exacerbated versus stable COPD).