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Cumulative Incidence of Recurrent VTE During First Anticoagulant by Type of Initial Anticoagulation.
| Anticoagulant Regimen | Patients on Regimen | Recurrent VTE, # (%) | 3-Month VTE Recurrence, (%) | 6-Month VTE Recurrence, (%) | Incidence rate (per 1000 person-months) |
|---|---|---|---|---|---|
| Warfarin | 132 | 7 (5.3%) | 4.0% | 4.0% | 4.0 |
| Enoxaparin | 53 | 9 (17.0%) | 6.6% | 10.3% | 24.4 |
| Dalteparin | 37 | 1 (2.7%) | 3.0% | 3.0% | 2.6 |
| Fondaparinux | 14 | 1 (7.1%) | 0.0% | 7.7% | 5.0 |
| Gray test | 0.004 |
Abbreviation: VTE, venous thromboembolism.
