Table 2.
Univariate Analysis of Perioperative DVT Risk in Patients With Pelvic and Acetabular Fractures.a
| DVT (n = 32) | Non-DVT (n = 78) | Test Statistics | P Value | |
|---|---|---|---|---|
| Age | 11.683 | .014 | ||
| ≤60 | 22 | 74 | ||
| >60 | 10 | 4 | ||
| Gender | 3.118 | .072 | ||
| Male | 26 | 50 | ||
| Female | 6 | 28 | ||
| BMI | 0.113 | .948 | ||
| ≤18 Kg/m2 | 6 | 13 | ||
| >18∼25 Kg/m2 | 17 | 44 | ||
| >25 Kg/m2 | 9 | 21 | ||
| Associate injury | 9.827 | .042 | ||
| Chest | 6 | 8 | ||
| Abdomen | 3 | 2 | ||
| Brain | 2 | 4 | ||
| Extremities | 10 | 13 | ||
| None | 11 | 51 | ||
| Comorbidity | 1.953 | .577 | ||
| HT | 6 | 19 | ||
| CAD | 2 | 7 | ||
| DM | 5 | 6 | ||
| None | 19 | 46 | ||
| ISS | 1.353 | .509 | ||
| ≤16 | 5 | 20 | ||
| >16 | 22 | 46 | ||
| >25 | 5 | 12 | ||
| Time from injury to surgery | 14.801 | .000 | ||
| ≤2 weeks | 14 | 63 | ||
| >2 weeks | 18 | 15 | ||
| Surgical approach | 0.003 | 1.001 | ||
| ORIF | 24 | 70 | ||
| CRIF | 4 | 12 | ||
| Operation time | 0.708 | .398 | ||
| <2 hours | 8 | 14 | ||
| ≥2 hours | 24 | 64 | ||
| Large amount of blood transfusion | 0.012 | .924 | ||
| Yes | 21 | 52 | ||
| No | 11 | 26 | ||
| d-dimer on admission | — | 1.000 | ||
| Positive | 32 | 76 | ||
| negative | 0 | 2 | ||
| d-dimer after operation | — | 1.000 | ||
| Positive | 32 | 77 | ||
| negative | 0 | 1 |
Abbreviations: BMI, body mass index; CAD, coronary heart disease; CRIF, closed reduction and internal fixation; DM, diabetes mellitus; DVT, deep vein thrombosis; HT, essential hypertension; ISS, injury severity score; ORIF, open reduction and internal fixation.
aLarge amount of intraoperative blood transfusion means blood transfusion more than 1600 mL totally or transfusion faster than 1.5 mL/(kg·min).