Regression coefficient (Beta) | Standard error | Wald probability (p) | Exp(Beta) OR | |
Ever smoker | 1.075 | 0.006 | <0.0001 | 2.93 |
Dyspnoea on exertion | 0.772 | 0.003 | <0.0001 | 2.16 |
Chronic phlegm production | 0.438 | 0.007 | <0.0001 | 1.55 |
Gender (male) | 0.352 | 0.005 | <0.0001 | 1.42 |
Age (y) | 0.021 | 0.0002 | <0.0001 | 1.02 |
Chronic cough | −0.093 | 0.007 | <0.0001 | 0.91 |
COPD, chronic obstructive pulmonary disease.