| Mild-to-moderate asthma | Severe asthma | |
| Patients | 365 | 283 |
| Total number of person-years | 17 914 | 13 975 |
| Before and after asthma onset | ||
| All VTEs | 17 | 18 |
| Only DVT | 11 | 5 |
| PE ± DVT | 6 | 13 |
| Before asthma onset | ||
| All VTEs | 10 | 2 |
| Only DVT | 8 | 1 |
| PE ± DVT | 2 | 1 |
| After onset of asthma | ||
| All VTEs | 7 | 16 |
| Only DVT | 3 | 4 |
| PE ± DVT | 4 | 12 |
Data are presented as n. DVT: deep venous thrombosis; PE: pulmonary embolism.