Table 2 Factors associated with never-smokers compared to ever-smokers among patients with COPD
Variable | Univariable | Multivariable | ||
|---|---|---|---|---|
OR (95% CI) | P-value | aOR (95% CI)* | P-value | |
Female sex | 29.7 (15.3–57.5) | < 0.001 | 15.4 (6.81–34.9) | < 0.001 |
History of tuberculosis | 2.49 (1.51–4.1) | < 0.001 | 1.25 (0.59–2.57) | 0.551 |
Physician-diagnosed asthma | 1.85 (1.11–3.07) | 0.019 | 1.50 (0.71–2.97) | 0.269 |
FVC % predicted | 0.97 (0.96–0.99) | < 0.001 | 0.99 (0.41–1.05) | 0.199 |
Positive bronchodilator response | 0.09 (0.01–0.64) | 0.016 | 0.12 (0.02–0.98) | 0.047 |
Absence of emphysema | 15.9 (8.69–29.2) | < 0.001 | 9.01 (0.05–0.21) | < 0.001 |
Tuberculosis-destroyed lung | 3.60 (1.94–6.68) | < 0.001 | 4.14 (1.56–11.2) | 0.005 |
Bronchiectasis | 2.82 (1.68–4.75) | < 0.001 | 1.86 (0.89–3.87) | 0.099 |