Table 4.
Univariate and multivariate regression analysis of appearance of bronchiectasis in the study population.
| Variables | Univariate | Multivariate | ||||
|---|---|---|---|---|---|---|
| OR | 95% CI | p | OR | 95% CI | p | |
| Moderate and severe asthma patients | ||||||
| Age < 42 yrs | 0.002 | 0.012 | ||||
| 42–65 yrs | 3.77 | 1.68–8.44 | 0.001 | 3.99 | 1.60–9.95 | 0.003 |
| ≥ 65 yrs | 2.78 | 1.13–6.84 | 0.026 | 2.91 | 1.06–8.04 | 0.039 |
| Severe asthma | 12.29 | 5.30–28.54 | < 0.001 | 8.91 | 3.69–21.49 | < 0.001 |
| Severe asthma patients | ||||||
| Age of asthma onset | 1.02 | 1.00–1.04 | 0.026 | 1.02 | 1.01–1.04 | 0.015 |
| Exacerbations ≥ 3 | 4.45 | 1.84–10.74 | 0.001 | 4.88 | 1.98–12.03 | 0.001 |
OR: odds ratio. CI: confidence interval. The multivariate model is the final model after stepwise removal of covariates.