Table 3. Number and distribution of recorded comorbidities.
| Frequency | Percent | |
| COPD | 26 | 42.6 |
| Critical illness polyneuropathy | 7 | 11.4 |
| Coronary heart disease | 24 | 39.3 |
| Immunosuppression | 0 | 0 |
| Delirium | 15 | 24.6 |
| Interstitial lung disease | 2 | 3.3 |
| Restrictive lung disease | 2 | 3.3 |
| Kidney failure | 23 | 37.7 |
| Oncological disease | 7 | 11.5 |
| Pneumonia | 36 | 59.0 |
| Left heart failure | 14 | 23.0 |
| Arterial hypertension | 38 | 62.3 |
| Obesity | 22 | 36.1 |
| Diabetes | 19 | 31.1 |
| Pulmonary hypertension | 4 | 6.6 |
| Other | 15 | 24.6 |
COPD, chronic obstructive pulmonary disease