ArticleArchives of gynecology and obstetrics2023
Incidence of postpartum hemorrhage and risk factors for recurrence in the subsequent pregnancy.
Article in Archives of gynecology and obstetrics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
8 citing papers in PubMed, 1 synthesis or guideline pooled it, 15 citations in OpenAlex.
- Objective monitoring of postpartum uterine activity: a systematic scoping review.Frontiers in medicine · 2026Pooled it
- Trial
- Thromboelastography combined with conventional coagulation parameters for developing a nomogram model to predict postpartum hemorrhage risk: A retrospective analysis.Pakistan journal of medical sciences · 2026Article
- von Willebrand disease: an illustrated review.Research and practice in thrombosis and haemostasis · 2026Review
- Hemoglobin Trajectory During Pregnancy and Postpartum Hemorrhage: A Retrospective Cohort Study.International journal of women's health · 2026Article
- Beyond Standard Algorithms: Diagnostic, Procedural, and Analgesic Challenges in Refractory Postpartum Hemorrhage.Cureus · 2026Article
- Reaching caesarean section rates below 15%: experience of a French tertiary maternity using the Robson classification system.Reproductive health · 2025Observational
- Risk factors and recurrence of cause-specific postpartum hemorrhage: A population-based study.PloS one · 2022Article
Corrections and comments
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Authors and funding
5 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTo assess incidence and risk factors for postpartum hemorrhage (PPH) and identify women at high risk of recurrence in the subsequent pregnancy.
methodsThis register-based study includes data on women from the Capital Region of Denmark with two consecutive deliveries recorded in the Copenhagen Obstetric Database from 2007 to 2020. PPH, defined as a blood loss of 1000 mL or more within 24 h after delivery, was the primary outcome measure. We calculated incidence and recurrence rate of PPH and assessed possible risk factors at index and subsequent deliveries.
resultsWe included 44,800 women with 95,673 deliveries. The overall incidence of PPH was 6.3%. Women with previous PPH had a 3.5-fold increased risk of PPH in a subsequent delivery compared to unaffected women (19.1 vs. 5.4%; OR 4.1; 95% CI 3.7-4.5). Major risk factors for recurrence were PPH in combination with blood transfusion or manual removal of placenta at the index delivery. Labor induction in subsequent pregnancy increased the risk of recurrent PPH compared to spontaneous onset (OR 1.5; 95% CI 1.2-1.9), while planned caesarean section reduced the risk, compared to planned vaginal delivery (OR 0.6; 95% CI 0.4-0.7).
conclusionPrevious PPH increases the risk of PPH in subsequent pregnancy 3.5-fold. The risk of recurrent PPH increases with labor induction and decreases with planned caesarean section in the subsequent pregnancy. To prevent recurrent PPH, personalized counseling based on risk factors, relevant labor history and maternal preferences is suggested.
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Registered trials
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