Demographic and clinical characteristics of patients (n=283)
| n (%) | |
| Mean age (years ± SD) | 55±15 |
| Male | 161 (56.9) |
| ICU | 192 (67.8) |
| Mechanical ventilation | 190 (67.1) |
| Immunosuppressive state | 131 (46.3) |
| Antibiotic treatment | 271 (95.8) |
| Median hospital length of stay (median, IQR) | 19 (10–34) |
| In-hospital mortality (%) | 71 (25.1) |
| Underlying disease/condition | |
| Solid organ malignancy | 40 (14.1) |
| Haematological malignancy | 39 (13.8) |
| Lung transplantation | 37 (13.1) |
| Lung disease | 34 (12.0) |
| Other solid organ transplantation | 13 (4.6) |
| Autoimmune disease | 13 (4.6) |
| HIV | 11 (3.9) |
| Others | 78 (27.6) |
| No underlying disease | 14 (5.3) |
| Uncertain | 4 (1.4) |
| Chest radiograph | |
| Any abnormality | 283 (100) |
| Multifocal infiltrates or consolidation | 99 (35.0) |
| Diffuse infiltrates | 77 (27.2) |
| Respiratory diagnosis | |
| Pneumonia | 153 (54.1) |
| Interstitial lung diseases | 30 (10.6) |
| ARDS | 19 (6.7) |
| Lung transplant complication/rejection | 13 (4.6) |
| Pulmonary haemorrhage | 9 (3.2) |
| Cardiac decompensation | 8 (2.8) |
| Malignancy | 8 (2.8) |
| Others | 43 (15.2) |
ARDS, acute respiratory distress syndrome; ICU, intensive care unit.