| Reported n = 81, mean (SE) | Unreported n = 74, mean (SE) | p Value | |
| Length (days) | 16.1 (1.6) | 8.3 (1.0) | <0.001 |
| Dyspnoea | 13.2 (1.4) | 5.8 (0.8) | <0.001 |
| Sputum colour | 14.3 (1.6) | 7.5 (1.1) | <0.001 |
| Sputum volume | 14.2 (1.5) | 8.9 (1.4) | <0.001 |
| Well-being | 11.7 (1.7) | 1.9 (0.4) | <0.001 |
| TE (score) | 524.7 (52.2) | 226.2 (25.8) | <0.001 |
| ?E | 163.8 (20.1) | 39.9 (5.0) | <0.001 |