| Mean (SD) | Range | Ref range | Percentage |
---|---|---|---|---|
Illness perceptions (B-IPQ) | Â | Â | Â | Â |
 Consequences | 3.6 (2.5) | 0-9 | 0–10 |  |
 Timeline | 9.1 (2.1) | 0-10 | 0–10 |  |
 Personal control | 6.0 (2.5) | 0-10 | 0–10 |  |
 Treatment control | 6.8 (2.7) | 0-10 | 0–10 |  |
 Identity | 4.0 (2.6) | 0-10 | 0–10 |  |
 Concern | 4.1 (3.1) | 0-10 | 0–10 |  |
 Comprehensibility | 7.6 (2.7) | 0-10 | 0–10 |  |
Emotional response | 3.0 (3.1) | 0-10 | 0–10 |  |
Causes of COPD | Â | Â | Â | Â |
 Smoking |  |  |  | 71% |
 Heredity |  |  |  | 22% |
 Air pollution |  |  |  | 16% |
 Allergy |  |  |  | 8% |
 Other |  |  |  | 42% |
MRC dyspnoea | 1.7 (1.0) | 0-5 | 0-6 | Â |
FEV1 (litres) | 1.9 (0.6) | 1.0-3.7 | Â | Â |
FEV% pred | 67.0 (14.4) | 36.5-101.2 | Â | Â |
HRQoL: CCQ | 1.4 (0.8) | 0.0-3.8 | 0-6 | Â |
HRQoL: CRQ: | Â | Â | Â | Â |
CRQ-SAS physical | 5.6 (1.3) | 2.70-7.00 | 1-7 | Â |
CRQ-SAS emotional | 5.60 (1.0) | 2.73-7.00 | 1-7 | Â |