Table E4.
Complete case analysis measuring association between asthma British Thoracic Society (BTS) treatment step and switching to an angiotensin-II receptor blocker, according to age
| Characteristic | Crude hazard ratio (95% confidence interval) | Crude P | Adjusted hazard ratio (95% confidence interval) | Adjusted P |
|---|---|---|---|---|
| Age ≥60 y | ||||
| BTS step ≥3 | 1.49 (1.42-1.56) | <.001 | 1.37 (1.29-1.46) | <.001 |
| BTS step 2 | 1.22 (1.15-1.30) | <.001 | 1.10 (1.01-1.19) | .025 |
| BTS step 1 | 1.21 (1.14-1.29) | <.001 | 1.07 (0.99-1.17) | .104 |
| Age <60 y | ||||
| BTS step ≥3 | 1.30 (1.24-1.37) | <.001 | 1.24 (1.16-1.32) | <.001 |
| BTS step 2 | 1.08 (1.01-1.17) | .035 | 1.01 (0.91-1.12) | .870 |
| BTS step 1 | 1.02 (0.95-1.09) | .602 | 1.02 (0.94-1.12) | .594 |