Incidence of CAP per 1000 patients with COPD per year
| CAP | Persons/year | Rate (×1000 COPD cases per year) | |
|---|---|---|---|
| CAP, community acquired pneumonia; FEV1, forced expiratory volume in 1 second. | |||
| Overall | 76 | 1597.3 | 47.6 |
| Intervention group | 37 | 798.6 | 46.3 |
| Non-intervention group | 39 | 795.7 | 49.0 |
| <65 years | 23 | 569.3 | 40.4 |
| ⩾65 years | 53 | 1026.9 | 51.6 |
| FEV1 <40% | 41 | 644.5 | 63.6 |
| FEV1 ⩾40% | 35 | 952.0 | 36.8 |