Table 2: Indicator Variables for Anticoagulant Treatments
| Variable | Value | Anticoagulants Administered if Value = 1 |
| A0 | 0 or 1 | None |
| A1 | 0 or 1 | Warfarin |
| A2 | 0 or 1 | Enoxaparin |
| A3 | 0 or 1 | Rivaroxaban |
| A1A2 | 0 or 1 | Warfarin, Enoxaparin |
| A1A3 | 0 or 1 | Warfarin, Rivaroxaban |
| A2A3 | 0 or 1 | Enoxaparin, Rivaroxaban |
| A1A2A3 | 0 or 1 | Warfarin, Enoxaparin, Rivaroxaban |