Chronic respiratory diseases of patients admitted to RICU
| Chronic respiratory diseases | No of patients | % of total | % favourable outcome2-150 |
| None | 48 | 6.3 | 83.3 |
| COPD | 451 | 59.6 | 78.7 |
| Asthma | 18 | 2.3 | 81.3 |
| Chest wall diseases | 38 | 5.0 | 86.8 |
| Neuromuscular diseases | 30 | 3.9 | 80.0 |
| Pulmonary fibrosis | 22 | 2.9 | 72.7 |
| TB sequelae | 36 | 4.7 | 83.8 |
| Hypoventilation obesity syndrome | 44 | 5.8 | 82.0 |
| OSAS | 12 | 1.5 | 90.0 |
| Other | 57 | 7.5 | 77.1 |
OSAS = obstructive sleep apnoea syndrome.
↵2-150 % improved patients (discharged to home or ordinary ward).