Table 3.
Multivariable logistic model for severe postpartum hemorrhage
| Independent risk factors | Adjusted OR | 95% CI | P – value |
|---|---|---|---|
| Previous severe PPH | 8.97 | 5.25 – 15.33 | <0.001 |
| Anticoagulant medication | 4.79 | 2.72 – 8.41 | <0.001 |
| Anemia (Hb ≤ 9.0 g/dL) | 4.27 | 2.79 – 6.54 | <0.001 |
| Severe preeclampsia or HELLP syndrome |
3.03 | 1.74 – 5.27 | <0.001 |
| Uterine fibromas | 2.71 | 1.69 – 4.35 | <0.001 |
| Multiple pregnancy | 2.11 | 1.39 – 3.22 | <0.001 |
| Mode of delivery | |||
| Spontaneous vaginal | Ref. | ||
| Instrumental vaginal | 1.50 | 1.17 – 1.93 | 0.001 |
| In-labor cesarean | 1.95 | 1.53 – 2.47 | <0.001 |
| Elective cesarean | 1.66 | 1.22 – 2.24 | 0.006 |
| IVF/ICSI | 1.88 | 1.33 – 2.65 | <0.001 |
| Fever (>38 °C) | 1.88 | 1.28-2.75 | 0.001 |
| Labor induction | 1.69 | 1.39 – 2.05 | <0.001 |
| Labor augmentation | 1.59 | 1.32 – 1.91 | <0.001 |
| Birth weight > 4500 g | 1.46 | 1.01 – 2.12 | 0.046 |
| Primiparity | 1.20 | 0.99 – 1.44 | 0.055 |
Area under ROC curve = 0.7173, Hosmer-Lemeshow χ 2 = 12.99, p = 0.1122
PPH postpartum hemorrhage, Hb hemoglobin, HELLP hemolysis, elevated liver enzymes, low platelet count, IVF/ICSI in vitro fertilization/intra-cytoplasmic sperm injection