Table 1 Baseline demographic and clinical characteristics, including the prevalence of risk factors for VTE
Risk factors for VTE | Enoxaparin | Bemiparin | Control | |||
|---|---|---|---|---|---|---|
n = 2340 | n = 2340 | n = 2340 | ||||
No. | % | No. | % | No. | % | |
-History of APS | 0 | 0 | 2 | 0.1 | 0 | 0 |
-Varicose veins | 33 | 1.4 | 31 | 1.3 | 31 | 1.3 |
-Heart disease | 5 | 0.2 | 7 | 0.3 | 7 | 0.3 |
-Surgery during pregnancy | 32 | 1.4 | 26 | 1.1 | 26 | 1.1 |
-Dehydration | 10 | 0.4 | 18 | 0.8 | 2 | 0.1 |
-Severe inflammation | 15 | 0.6 | 16 | 0.7 | 0 | 0 |
-Pre-eclampsia | 147 | 6.3 | 123 | 5.3 | 125 | 5.3 |
-Prolonged labour | 173 | 7.4 | 148 | 6.3 | 174 | 7.4 |
-Smoking | 42 | 1.8 | 31 | 1.3 | 36 | 1.5 |
-Twin pregnancy | 70 | 3.0 | 54 | 2.3 | 57 | 2.4 |
-Postpartum haemorrhage | 23 | 1.0 | 24 | 1.0 | 22 | 0.9 |
-Bed rest >3 days | 4 | 0.2 | 24 | 1.0 | 4 | 0.2 |
-Wound infection | 7 | 0.3 | 22 | 0.9 | 7 | 0.3 |
-Pyelonephritis | 8 | 0.3 | 37 | 1.6 | 28 | 1.2 |
-BMI > 30 kg/m2 | 1222 | 52.2 | 1335 | 57.1 | 1197 | 51.2 |
-Age > 35 years | 852 | 36.4 | 938 | 40.1 | 864 | 36.9 |
-Para ≥ 4 | 1201 | 51.3 | 1133 | 48.4 | 1156 | 49.4 |