Logistic regression analysis in various populations
| Whole | Nonsmoking | <10 pack-yrs | |
| Bronchial wall thickening | 9.87 (2.01–48.4) | 22.0 (2.47–196.0) | 10.39 (2.05–52.6) |
| Bronchial dilatation | 4.36 (1.09–17.5) | 5.65 (1.02–31.5) | 4.26 (1.02–17.8) |
| Peripheral blood eosinophils | 4.16 (1.05–16.5) | 3.94 (0.70–22.2) | 3.43 (0.82–14.4) |
| Exhaled NO | 2.71 (0.81–9.1) | 2.67 (0.54–13.1) | 4.00 (0.98–16.3) |
| Bronchial wall thickening# | 8.08 (1.31–49.7) | 23.46 (1.85–297.2) | 9.71 (1.41–67.0) |
| Bronchial dilatation# | 2.67 (0.53–13.5) | 3.62 (0.45–29.1) | 2.54 (0.44–14.6) |
Data are presented as OR (95% CI)
#: adjusted OR for age, sex and disease duration