ReviewCureus2022
Race/Ethnicity as a Risk Factor in the Development of Postpartum Hemorrhage: A Thorough Systematic Review of Disparity in the Relationship Between Pregnancy and the Rate of Postpartum Hemorrhage.
Review in Cureus, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 2 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
10 citing papers in PubMed, 2 syntheses or guidelines pooled it, 23 citations in OpenAlex.
- Estimating Causal Effects of Third-Stage Management on Postpartum Haemorrhage in a Midwifery Context: An Evidence Synthesis Approach for Constructing Directed Acyclic Graphs.Paediatric and perinatal epidemiology · 2026Pooled it
- Effects of Race, Ethnicity and Socioeconomic Deprivation on Postpartum Haemorrhage in High-Income Countries: A Systematic Review and Meta-Analysis.BJOG : an international journal of obstetrics and gynaecology · 2025Pooled it
- Predicting intrauterine vacuum-induced postpartum hemorrhage-control device treatment success.Pregnancy (Hoboken, N.J.) · 2026Article
- Language-Based Inequities in Transfusion Practices with Obstetric Hemorrhage.Maternal and child health journal · 2025Article
- Quantitative Validation of Hematocrit Percentage Drop Cutoff Points in Postpartum Hemorrhage: An Automated Gravimetric Approach.Maternal-fetal medicine (Wolters Kluwer Health, Inc.) · 2025Article
- Global burden, disparities, and determinants of postpartum haemorrhage among women who gave birth: an umbrella review of systematic reviews and meta-analyses.Frontiers in reproductive health · 2025Review
- Patient- and Hospital- Level Disparities in Severe Maternal Morbidity: a Retrospective Multistate Analysis, 2015-2020.Journal of racial and ethnic health disparities · 2024Article
- Predictive model for postpartum hemorrhage requiring hysterectomy in a minority ethnic region.World journal of clinical cases · 2024Article
- Racial disparities in maternal blood transfusion in the United States by mode of delivery.PloS one · 2024Article
- Oxytocin receptor single nucleotide polymorphism predicts atony-related postpartum hemorrhage.BMC pregnancy and childbirth · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Postpartum hemorrhage (PPH) is a major cause of maternal death and morbidity worldwide. Throughout the years, there have not been many studies looking into the association of race and ethnicity with the occurrence of PPH. The goal of this study was to assess race and ethnicity as risk factors in the development of PPH in pregnant women. Following the Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) standards, we conducted the analysis and conducted a literature search using Google Scholar and PubMed. After applying our inclusion and exclusion criteria, the search technique yielded a total of eight articles. The analysis included seven observational studies and one randomized controlled trial. The incidence of PPH was chosen as the major outcome measure. An evaluation of eight studies revealed that although Hispanics, Asians, Native Hawaiians, and other Pacific Islanders (NHOPI) have a higher chance of developing PPH caused by uterine atony, Caucasians had a greater rate of transfusion than the other groups. In addition, compared to Caucasians, African Americans or African descendants had a lower risk of atonic PPH but increased odds of atonic PPH requiring interventions. On the other hand, compared to non-native groups, Native Americans had increased odds of uterine atony. The results showed that, in contrast to other races/ethnicities, Caucasians had the lowest risk of PPH. Additionally, it was shown that African Americans or those descended from Africans had a higher chance of PPH but a lower risk of atonic PPH.
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.