Table 2 Risk factors for venous thromboembolism in rheumatic disease patients undergoing surgery
| Patient-specific risk factors | |
| Active rheumatic disease | |
| History of VTEa | |
| Active cancer | |
| Estrogen | |
| Active cancer | |
| Smoking | |
| Advanced age | |
| Black race (Asian race protective) | |
| Obesity | |
| Non-O ABO blood group | |
| Thrombophilia | |
| Surgery-specific risk factors | |
| Orthopedic surgery > other surgery | |
| Hip fracture | |
| Bilateral arthroplasty | |
| Revision arthroplasty | |
| General > Axial/regional anesthesia |