Table 2. Univariate analyses associated with postoperative VTE.
| Items | VTE (N=382) | Non-VTE (N=1238) | Mann-Whitney U test | ||
| Median(IQR) | Median(IQR) | Z-value | p-value | ||
| Surgical duration | 135 (75) min | 140 (75) min | -1.124 | 0.261 | |
| Blood loss | 400 (500) ml | 400 (400) ml | -0.040 | 0.968 | |
| Blood transfusion | 0 (400) ml | 0 (126) ml | -1.676 | 0.094 | |
| Incision length | 14 (8.25) cm | 14 (8.00) cm | -0.145 | 0.885 | |
| PTA | 109.4 (20)% | 109.6 (20)% | -1.099 | 0.272 | |
| FIB | 2.92 (0.71) g/L | 2.78 (0.83) g/L | -2.576 | 0.010 | |
| TT | 14.6(1.6) s | 14.5 (1.7) s | -0.272 | 0.786 | |
| D-dimer | 0.14 (0.15) mg/L | 0.11 (0.10) mg/L | -5.958 | <0.001 | |
| HDL | 1.145 (0.40) mmol/L | 1.11 (0.35) mmol/L | -3.301 | 0.001 | |
| LDL | 3.12 (1.10) mmol/L | 3.04 (1.12) mmol/L | -1.733 | 0.083 | |
| TC | 4.76 (1.45) mmol/L | 4.63 (1.30) mmol/L | -1.992 | 0.046 | |
| T-BIL | 12.85 (5.70) umol/L | 12.50 (5.73) umol/L | -1.083 | 0.279 | |
| D-BIL | 4.00 (2.20) umol/L | 3.90 (2.10) umol/L | -0.700 | 0.484 | |
| I-BIL | 8.7 (4.43) umol/L | 8.30 (4.50) umol/L | -1.545 | 0.122 | |
| BMI | 25.33 (4.01) kg/m2 | 24.77 (4.40) kg/m2 | -1.211 | 0.226 | |
VTE, venous thromboembolism; IQR, interquartile range; PTA, prothrombin time activity; FIB, fibrinogen; TT, thrombin time; HDL, high density lipoprotein; LDL, low density lipoprotein; TC, total cholesterol; T-BIL, total bilirubin; D-BIL, direct bilirubin; I-BIL, indirect bilirubin; BMI, body mass index.