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Table 3 Adjusted multivariable logistic regression models for peripartum blood transfusion associated with pregnancy factors

From: Predicting peripartum blood transfusion: focusing on pre-pregnancy characteristics

 Odds ratio95% CI
Maternal age ≥ 35 years1.431.40–1.47
Multifetal pregnancy2.262.15–2.39
Nulliparity1.191.16–1.22
Cesarean delivery1.641.60–1.68
Gestational age at births < 37 weeks2.532.41–2.65
Neonatal weight (kg)
 < 2.5 kg1.641.56–1.72
 ≥ 4.0 kg1.401.33–1.48
Neonatal sex (male)0.950.93–0.97
Hypertension2.412.29–2.53
Postpartum hemorrhage9.098.87–9.31
Placental abruption4.744.37–5.14
Placenta previa13.6513.12–14.20
Embolization218.90184.34–259.95
Hysterectomy105.1189.81–123.01
  1. Abbreviations: CI Confidence interval