Table 3 VTE risk factors prior to and during patient hospitalization
VTE risk factors | Surgical risk | Medical risk | All risk |
|---|---|---|---|
|  | (N = 227) | (N = 168) | (N = 395) |
Conditions Present Prior to Hospital Admission | |||
Previous venous thromboembolism | 6 (2.7%) | 1 (0.6%) | 7 (1.8%) |
Thrombophilia (laboratory documented) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) |
Varicose veins or venous insufficiency | 13 (5.9%) | 5 (3.0%) | 18 (4.6%) |
Post-menopausal hormone replacement therapy | 2 (0.9%) | 0 (0.0%) | 2 (0.5%) |
Chronic pulmonary disease | 22 (10.0%) | 32 (19.0%) | 54 (13.9%) |
Long term immobility | 5 (2.3%) | 5 (3.0%) | 10 (2.6%) |
Pregnancy (within 3 months) | 1 (0.5%) | 0 (0.0%) | 1 (0.3%) |
Obese (based on physician's note) | 16 (7.3%) | 9 (5.4%) | 25 (6.4%) |
Contraceptives | 2 (0.9%) | 1 (0.6%) | 3 (0.8%) |
Chronic heart failure | 0 (0.0%) | 23 (13.7%) | 23 (5.9%) |
Risk Factors for VTE During Hospital Admission | |||
Admitted to ICU/CCU | 37 (16.3%) | 71 (42.3%) | 108 (27.3%) |
Central venous catheter | 22 (9.7%) | 14 (8.3%) | 36 (9.1%) |
Mechanical ventilation | 4 (1.8%) | 9 (5.4%) | 13 (3.3%) |
Immobile with bathroom privileges | 19 (8.4%) | 25 (14.9%) | 44 (11.1%) |
Complete immobilization | 36 (15.9%) | 39 (23.2%) | 75 (19.0%) |
Cancer therapy | 2 (0.9%) | 9 (5.4%) | 11 (2.8%) |
Heparin induced thrombocytopenia | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) |