Table 1.
Patient characteristics at baseline, presented in number (%) or mean (SD)
| Total sample (n = 166) | Primary care-RCT20 (n = 100) | Secondary care-cohort study21 (n = 66) | |
|---|---|---|---|
| Patient characteristics | |||
| Male (%) | 119 (71.7) | 67 (67.0) | 52 (78.8) |
| Age (SD) | 66.0 (8.6) | 65.7 (8.8) | 66.3 (8.4) |
| Current smokers (%) | 45 (27.1) | 35 (35.0) | 10 (15.2) |
| BMI (SD) | 26.3 (4.3) | 26.6 (4.6) | 25.9 (3.6) |
| FEV1% predicted (SD) | 60.3 (18.0) | 64.5 (16.7) | 53.8 (18.2) |
| Obstruction severity (GOLD) | |||
| Mild (%) | 23 (13.9) | 17 (17.0) | 6 (9.1) |
| Moderate (%) | 95 (57.2) | 63 (63.0) | 32 (48.5) |
| Severe (%) | 41 (24.7) | 18 (18.0) | 23 (34.8) |
| Very severe (%) | 7 (4.2) | 2 (2.0) | 5 (7.6) |
| MRC dyspnoea scale (n = 162) | |||
| Category 1 (%) | 63 (38.9) | 37 (37.4) | 26 (41.3) |
| Category 2 (%) | 60 (37.0) | 44 (44.4) | 16 (25.4) |
| Category 3 (%) | 39 (24.1) | 18 (18.2) | 21 (33.3) |
FEV1 forced expiratory volume in 1 s, GOLD Global Initiative for Chronic Obstructive Lung Disease, BMI body mass index, MRC Medical Research Council