Table 1.
Demographic characteristics and thromboembolic risk factors
| Characteristics | Any arthroplasty (N = 499), n (%) | Total hip replacement (N = 392), n (%) | Total knee replacement (N = 107), n (%) | |
|---|---|---|---|---|
| Gender | Men | 159 (31.9) | 129 (32.9) | 30 (28.0) |
| Women | 340 (68.1) | 263 (67.1) | 77 (71.0) | |
| Age (years ± SD) | 66.2 ± 9.5 | 65.5 ± 9.8 | 68.7 ± 7.7 | |
| Thromboembolic risk factors | ||||
| Personal history of DVT | 16 (3.2) | 10 (2.6) | 6 (5.6) | |
| Family history of VTE | 15 (3.0) | 11 (2.8) | 4 (3.7) | |
| Post-thrombotic syndrome | 7 (1.5) | 7 (1.8) | 0 (0.0) | |
| Varicose veins | 139 (27.9) | 102 (26.0) | 37 (34.6) | |
| Active cancer | 27 (5.4) | 21 (5.4) | 6 ( 5.6) | |
| Thrombocitosis | 16 (3.2) | 14 (3.6) | 2 (1.9) | |
| Dehydration | 122 (24.4) | 90 (23.0) | 32 (29.9) | |
| Acute infection | 9 (1.8) | 7 (1.8) | 2 (1.9) | |
| Heart failure | 90 (18.0) | 66 (16.8) | 24 (16.5) | |
| Ischemic heart disease | 78 (15.6) | 61 (15.6) | 17 (15.9) | |
| COPD | 18 (3.6) | 16 (4.1) | 2 (1.9) | |
| Diabetes mellitus | 55 (11.0) | 47 (12.0) | 8 (7.3) | |
| Creatinine clearance <30 ml/min | 2 (0.4) | 2 (0.5) | 0 (0.0) | |
| Creatinine clearance 30-50 ml/min | 33 (6.6) | 27 (6.9) | 6 (5.6) | |
| Creatinine clearance >50 ml/min | 464 (93.0) | 363 (92.6) | 101 (94.4) | |
Creatinine clearance was calculated using the Cockroft formula
COPD chronic obstructive pulmonary disease