COPD characteristics of patients in participant practices
| Practice characteristics | Participant practices (n=20) |
| Population (practice mean) | 209 628 (10 081) |
| Patients with diagnosis of COPD and no record of asthma (%) | 2967 (1.42) |
| Patients with COPD with spirometry recorded—% | 1999 (67.4) |
| Patients with COPD with FEV1≥50% predicted in past year | 839 (28.3%) |
| Patients with COPD with: Diagnosis of COPD (no record asthma) + no record FEV1<50% predicted in past year + taking higher dosage ICS* | 392 (13.2%) |
*>400 μg/day beclometasone dipropionate or equivalent.
COPD, chronic obstructive pulmonary disease; ICS, inhaled corticosteroids .