Table 2.
Risk factors for VTE and D-dimer levels
| Risk | N = 497(%) | D-dimer ≧3.0 | D-dimer < 3.0 | |
|---|---|---|---|---|
| N = 135(%) | N = 362(%) | |||
| Low | Age ≧35 years | 257(51) | 74(54) | 183(50) |
| BMI ≧25.0 kg/m2 | 70(14) | 12(8) | 58(16) | |
| Hospitalization ≧14 days | 113(22) | 46(34) | 67(18) | |
| Multiple pregnancy | 53(10) | 27(20) | 26(7) | |
| HDP | 28(5) | 10(7) | 18(4) | |
| Smoker | 2(0.4) | 0 | 2(0.5) | |
| Moderate | Thrombophilia | 13(2) | 5(3) | 8(2) |
| VTE history = 1 time | 0 | 0 | 0 | |
| Cardiopulmonary disease | 2(0.4) | 0 | 2(0.5) | |
| Inflammatory bowel disease | 0 | 0 | 0 | |
| Connective tissue disease | 3(0.6) | 3(2) | 0 | |
| Malignant tumor | 2(0.4) | 0 | 2(0.5) | |
| Paralysis | 2(0.4) | 0 | 2(0.5) | |
| Nephrotic syndrome | 0 | 0 | 0 | |
| High | VTE history ≧2 times | 0 | 0 | 0 |
Risk factors for VTE were extracted with reference to the Royal College of Obstetricians and Gynecologists Guideline 2015
VTE venous thromboembolism, HDP hypertensive disorders of pregnancy, BMI body mass index