IMR Press / CEOG / Volume 47 / Issue 6 / DOI: 10.31083/j.ceog.2020.06.5365
Open Access Original Research
Postpartum hemorrhage is associated with neonatal body weight, pre-pregnancy body mass index, and maternal weight gain
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1 National Hospital Organization Kyoto Medical Center, Kyoto, 612-8555, Japan
2 Department of Gynecology and Obstetrics, Graduate School of Medicine, Kyoto University, Kyoto, 606-8507, Japan
3 Division of Preventive Medicine, Clinical Research Center, National Hospital Organization Kyoto Medical Center, Kyoto, 612-8555, Japan
4 Laboratory of Nutritional Physiology, Graduate School of Human Science and Environment, University of Hyogo, Hyogo, 670-0092, Japan
*Correspondence: soulken@kuhp.kyoto-u.ac.jp (KEN YAMAGUCHI)
Clin. Exp. Obstet. Gynecol. 2020, 47(6), 920–925; https://doi.org/10.31083/j.ceog.2020.06.5365
Submitted: 11 September 2019 | Accepted: 9 June 2020 | Published: 15 December 2020
Copyright: © 2020 Yamamura et al. Published by IMR press
This is an open access article under the CC BY 4.0 license https://creativecommons.org/licenses/by/4.0/.
Abstract

Purpose of Investigation: The purpose is to identify factors related to postpartum hemorrhage (PPH) that are evaluated during regular prenatal check-ups. Materials and Methods: Obstetric and neonatal data were collected retrospectively for 1,922 women with singleton pregnancies who delivered vaginally. Results: Overweight women exhibited more severe PPH cases compared to normal PPH (p = 0.04). Of pre-pregnancy body mass index (BMI), gestational weight gain (GWG), gestational week of delivery, and neonatal body weight, neonatal body weight showed a significantly elevated risk for severe PPH (adjusted OR = 1.156, p < 0.001). Infant body weight was correlated positively with pre-pregnancy BMI, GWG, and gestational week of delivery (r = 0.194, r = 0.189 and r = 0.364, respectively). Pre-pregnancy BMI, GWG, and gestational week of delivery were associated with neonatal body weight (adjusted B = 0.169, 1.206 and 1.181, respectively; p < 0.001). Conclusion: Management of maternal body weight induces a safe delivery through controlling neonatal body weight. Content: Severe postpartum hemorrhage is associated with neonatal body weight which is influenced by maternal body mass index and weight gain.

Keywords
Postpartum hemorrhage
Neonatal body weight
Body mass index
Body weight gain
Funding
2018G026/Smoking Research Foundation
Figures
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