Follow up of patients with COPD recruited at an admission for a COPD exacerbation
| *Individuals who died without having a readmission during the follow up period. | |
| Total number of individuals | 340 |
| Mean (SD) total days of follow up (excluding days in hospital) | 410 (181) |
| Number of readmissions during follow up, n (%) | |
| 0 | 126 (37%) |
| 1 | 78 (23%) |
| 2 | 43 (13%) |
| 3 | 32 (9%) |
| 4 | 18 (5%) |
| ⩾5 | 43 (13%) |
| Days to first readmission, median (P25–P75) | 186 (40–432) |
| Vital status: died during follow up, n (%) | 98 (29%) |
| Respiratory causes (ICD-9 460–519) | 73 (74%) |
| COPD group (490–496) | 54 (55%) |
| Respiratory failure (518–519) | 5 (5%) |
| Cardiovascular causes (390–459) | 12 (12%) |
| Ischaemic heart disease (410–414) | 5 (5%) |
| Cancer (140–239) | 7 (7%) |
| Lung cancer (162) | 5 (5%) |
| Other causes | 6 (6%) |
| Excluded individuals*, n (%) | 28 (8%) |
| Number of individuals in follow up analysis, n (%) | 312 (92%) |