Independent risk factors for adverse outcomes following discharge
| Independent risk factors for outcomes | Adjusted hazard ratio(95% CI) | p value |
|---|---|---|
| *Recurrent life threatening event defined as recurrent acute hypercapnic respiratory failure requiring assisted ventilation or death. | ||
| Readmission | ||
| Katz score 0–4 | 1.75 (1.10 to 2.76) | 0.018 |
| >21 days in hospital in previous year | 1.74 (1.11 to 2.74) | 0.016 |
| Recurrent life threatening event* | ||
| On long term oxygen before index admission | 2.07 (1.30 to 3.30) | 0.002 |
| APACHE II score (per 5 point increase) | 1.34 (1.09 to 1.66) | 0.006 |
| Body mass index (per 1 kg/m2 increase) | 0.93 (0.87 to 0.99) | 0.041 |
| Death | ||
| MRC dyspnoea score 4–5 | 3.07 (1.75 to 5.41) | <0.001 |