| Unadjusted odds ratio (CL) | p-value | Adjusted odds ratio# (CL) | p-value |
Episodes of wheezing with dyspnoea | 8.3 (4.2–16.5) | <0.0001 | 4.3 (2.0–9.3) | 0.0002 |
Self-reported pneumonia | 5.0 (2.6–9.7) | <0.0001 | 3.8 (1.7–8.1) | 0.0007 |
Chronic bronchitis | 5.0 (2.6–9.8) | <0.0001 | 2.6 (1.1–6.2) | 0.03 |
Exercise limitation due to dyspnoea | 2.3 (1.2–4.6) | 0.02 | 1.6 (1.04–2.5) | 0.04 |
Number of pack-yrs | 1.0 (0.99–1.02) | 0.07 | 0.99 (0.97–1.0) | 0.2 |
FEV1 post-BD % pred | 0.97 (0.96–0.98) | <0.0001 | 0.99 (0.97–1.0) | 0.3 |