ArticleActa obstetricia et gynecologica Scandinavica2024
The association between maternal vitamin D deficiency and postpartum hemorrhage and uterine atony.
Article in Acta obstetricia et gynecologica Scandinavica, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 7 citations in OpenAlex.
- Prenatal vitamin D levels and postpartum hemorrhage in a rural Alaska cohort.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2026Article
- The impact of the integrated labor-delivery-recovery-postpartum unit on maternal-neonatal outcomes and psychological experiences among low-risk parturients: a prospective cohort study from a high-volume tertiary center in china.Frontiers in medicine · 2026Article
- Maternal Vitamin D Deficiency and Its Effects on Pregnancy Outcomes.Food science & nutrition · 2026Article
- Nomogram for predicting postpartum hemorrhage in women with hypertensive disorders of pregnancy.Scientific reports · 2025Article
- The association between maternal vitamin D deficiency and postpartum hemorrhage and uterine atony.Acta obstetricia et gynecologica Scandinavica · 2024Article
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
Abstract
introductionPostpartum hemorrhage is the leading cause of maternal morbidity and mortality worldwide. There are several known risk factors for postpartum hemorrhage related to pregnancy and delivery, but less evidence of predisposing factors. Recent research has shown that vitamin D deficiency may increase the risk of cesarean section due to dystocia, based on its effect on striated muscle as well as possible effect on the myometrium. Whether vitamin D deficiency increases the risk for postpartum hemorrhage and especially atonic hemorrhage is unknown. MATERIAL AND
methodsThis was a retrospective translational study. The study population included 1367 women in Sweden and the main exposure was the serum concentration of 25-hydroxylated vitamin D at time of delivery. The LIASON® 25 OH vitamin D total assay method was used for analyzing 25-hydroxylated vitamin D. Vitamin D insufficiency was defined as serum concentration <50 nmol/L and vitamin D deficiency as serum concentrations <25 nmol/L. Primary outcomes were postpartum hemorrhage and severe postpartum hemorrhage defined as bleeding ≥500 mL and ≥ 1000 mL, respectively 2 h after delivery. Secondary outcome was atonic postpartum hemorrhage. Crude and adjusted odds ratios were calculated with 95% confidence intervals using univariable and multivariable logistic regression. Three different adjustment methods were used, adjusting for maternal, obstetrical and neonatal confounders.
resultsPostpartum hemorrhage and severe postpartum hemorrhage afflicted 31.3% and 6.4% of the women, respectively. Rate of atonic postpartum hemorrhage was 21% in the whole population. Rate of vitamin D insufficiency and deficiency was 57%. Vitamin D insufficiency or deficiency was neither found to be associated with postpartum hemorrhage, nor with atonic postpartum hemorrhage.
conclusionsIn this study, the vitamin D status of women at the time of delivery was not a predictor of postpartum hemorrhage overall or atonic postpartum hemorrhage.
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