Table 2 Univariate analysis of factors associated with preoperative deep venous thrombosis (DVT)
Variables | Number (%) of patients without DVT (n = 750) | Number (%) of patients with DVT (n = 105) | P |
|---|---|---|---|
Gender (males) | 267 (35.6) | 45 (42.9) | 0.148 |
Age | 77.4 ± 8.4 | 76.2 ± 8.9 | 0.184 |
Body mass index (BMI) | 23.2 ± 3.4 | 24.4 ± 3.7 | 0.002 |
Hypertension | 434 (57.9) | 60 (57.1) | 0.888 |
Diabetes mellitus | 140 (18.7) | 17 (16.2) | 0.539 |
Heart disease | 242 (32.3) | 32 (30.5) | 0.713 |
Cerebrovascular disease | 160 (21.3) | 18 (17.1) | 0.322 |
Pulmonary disease | 77(10.3) | 9 (8.6) | 0.589 |
Liver disease | 37 (4.9) | 2 (1.9) | 0.164 |
Renal insufficiency | 28 (3.7) | 3 (2.9) | 0.653 |
Peripheral vascular disease | 22 (2.9) | 9 (8.6) | 0.004 |
History of allergy | 155 (20.7) | 19 (18.1) | 0.540 |
History of surgery | 209 (27.9) | 30 (28.6) | 0.880 |
History of VTE event | 26 (3.5) | 14 (13.3) |  < 0.001 |
Time from injury to DVT screening | 3.6 ± 3.3 | 7.7 ± 4.5 |  < 0.001 |
Fracture classification (based on AO classification system) | Â | Â | 0.445 |
  A1 | 238 (31.7) | 31 (29.5) |  |
  A2 | 406 (54.1) | 63 (60.0) |  |
  A3 | 106 (14.1) | 11 (10.5) |  |
ASA score | Â | Â | 0.067 |
  I-II | 393 (52.4) | 45 (42.9) |  |
  III-IV | 357 (47.6) | 60 (57.1) |  |
PLT (> 214*109/L) | 291 (38.8) | 56 (53.3) | 0.005 |
HCT (< 34.0%) | 502 (66.9) | 84 (80.0) | 0.007 |
D-dimer (> 1.0 mg/L) | 465 (62.0) | 82 (78.1) | 0.001 |
PT < 11.5 s | 174 (23.2) | 33 (31.4) | 0.065 |
PLR > 174 | 388 (51.7) | 71 (67.6) | 0.002 |
ALB (< 32.5 g/L) | 310 (41.3) | 66 (62.9) |  < 0.001 |
TT(> 15.5 s) | 524 (69.9) | 72 (68.6) | 0.787 |
TC (< 3.7 mmol/L) | 263 (35.1) | 52 (49.5) | 0.004 |