Table 2 Multivariate logistic regression for 2-h postpartum hemorrhage (n = 1,903)
Variation | Group | B | B Standard error | OR | OR 95%CI | P | |
|---|---|---|---|---|---|---|---|
Lower bound | Upper bound | ||||||
Age | Appropriate age | - | - | - | - | - | - |
Advanced age | -0.159 | 0.181 | 0.853 | 0.591 | 1.206 | 0.381 | |
Super-advanced age | 0.373 | 0.827 | 1.451 | 0.210 | 6.453 | 0.652 | |
BMI | Normal | - | - | - | - | - | - |
Underweight | -0.563 | 0.818 | 0.569 | 0.134 | 3.908 | 0.491 | |
Overweight | -0.239 | 0.803 | 0.788 | 0.191 | 5.306 | 0.766 | |
Previous cesarean | No | - | - | - | - | - | - |
Yes | 0.426 | 0.325 | 1.531 | 0.783 | 2.825 | 0.190 | |
Fetal position | LOA and ROA | - | - | - | - | - | - |
Others | 0.093 | 0.210 | 1.098 | 0.718 | 1.638 | 0.657 | |
Epidural analgesia | No | - | - | - | - | - | - |
Yes | 0.266 | 0.129 | 1.304 | 1.013 | 1.680 | 0.039 | |
Oxytocin induction | No | - | - | - | - | - | - |
Yes | 0.228 | 0.134 | 1.257 | 0.964 | 1.631 | 0.088 | |
Parity | 1 | - | - | - | - | - | - |
≥ 2 | -0.249 | 0.140 | 0.780 | 0.591 | 1.025 | 0.076 | |
Macrosomia | No | - | - | - | - | - | - |
Yes | 0.972 | 0.320 | 2.644 | 1.379 | 4.879 | 0.002 | |
Placental adhesion | No | - | - | - | - | - | - |
Yes | 0.877 | 0.234 | 2.405 | 1.501 | 3.772 | 0.000 | |
Birth canal injury | No | - | - | - | - | - | - |
Yes | -0.460 | 0.127 | 0.632 | 0.491 | 0.810 | 0.000 | |