Relation of dyspnoea grade and presence or absence of consolidation to mortality
| Dyspnoea grade | n | In-hospital mortality, % | 30-day mortality, %* | ||
| Total | npAECOPD | pAECOPD | Total | ||
| 1 | 6 | 0 | 0 | 0 | 0 |
| 2 | 46 | 0 | 0 | 0 | 0 |
| 3 | 171 | 2.3 | 1.6 | 4.4 | 2.9 |
| 4 | 382 | 3.9 | 0.4 | 11.8 | 6.0 |
| 5 | 315 | 24.4 | 16.6 | 37.9 | 27.6 |
| 5a | 173 | 17.3† | 12.4‡ | 28.8 | 22.5‡ |
| 5b | 142 | 33.1† | 23.1‡ | 45.3 | 33.8‡ |
↵* From time of hospital admission.
↵† Significant difference between 5a and 5b, p<0.01.
↵‡ Significant difference between 5a and 5b, p<0.05.
npAECOPD, non-pneumonic acute exacerbations of chronic obstructive pulmonary disease; pAECOPD, pneumonic acute exacerbations of chronic obstructive pulmonary disease.