Table 1.
Demographics of each group.
| Variables | Overall | DVT | No DVT | p Value # | |
|---|---|---|---|---|---|
| n | 500 | 26 | 474 | ||
| Sex | Male | 91 | 2 | 89 | 0.12 |
| Female | 409 | 24 | 385 | ||
| Age, years | 64.79 ± 12.7 (22–89) | 70.0 ± 14.6 (35–87) | 64.5 ± 12.5 (22–89) | 0.0083 | |
| BMI, kg/m2 | 24.0 ± 4.0 (12.2–41.7) | 23.6 ± 3.9 (18.2–32.2) | 24.3 ± 4.2 (12.2–41.8) | 0.63 | |
| Current steroid use | 54 | 10/26 | 44/474 | <0.0001 | |
| Previous DVT history | 11/500 | 6/26 | 5/474 | <0.0001 | |
| Current anticoagulant use | 51/500 | 6/26 | 45/474 | 0.026 | |
| Atrial fibrillation | 15/500 | 1/26 | 14/474 | 0.80 | |
| Congestive heart failure | 16/500 | 1/26 | 15/474 | 0.85 | |
| Major surgery | 347/500 | 20/26 | 327/474 | 0.22 | |
| Major surgery within last 12 months | 70/500 | 7/26 | 63/474 | 0.053 | |
| Diabetes mellitus | 54/500 | 3/26 | 51/474 | 0.9 | |
| Collagen disease | 55/500 | 7/26 | 48/474 | 0.023 | |
| Malignancy | 78/500 | 3/26 | 75/474 | 0.55 | |
| Current smoking | 36/500 | 1/26 | 35/474/ | 0.50 |
Data are shown as the number of patients or the mean ± standard deviation (range). DVT: deep venous thrombosis and BMI: body mass index. # Comparison of the presence and absence of preoperative DVT.