Cumulative incidence of recurrence of venous thromboembolism after a first or second episode of deep venous thrombosis (DVT)
| Time period | After first DVT (95% CI) | After second DVT (CI) |
|---|---|---|
| 1 year | 7.0% (4.8 to 9.1) | 7.6% (3.1 to 12) |
| 2 year | 12% (9.3 to 15) | 16% (9.3 to 22) |
| 3 year | 15% (12 to 18) | 19% (12 to 26) |
| 4 year | 18% (14 to 21) | 26% (18 to 34) |
| 5 year | 22% (18 to 25) | 28% (20 to 36) |