Table 3 Venous thromboembolism rates for each prophylaxis category and surgical procedure

Aspirin alone, % (n)

47.3% (2158)

0.5% (11)

Single potent anticoagulant (low-molecular-weight heparin, warfarin, factor X_a inhibitor), % (n)

29.0% (1322)

0.5% (7)

Anti-platelet agents other than aspirin/ multiple anticoagulants, % (n)

21.5% (981)

1.0% (9)

Low dose subcutaneous unfractionated heparin alone or no anticoagulation, % (n)

2.2% (101)

2.0% (2)

Total hip arthroplasty, % (n)

38% (1736)

0.5% (9)

Total knee arthroplasty, % (n)

62% (2826)

0.7% (20)