Trial reportPloS one2020
Risk factors for blood transfusion in traumatic and postpartum hemorrhage patients: Analysis of the CRASH-2 and WOMAN trials.
Trial report in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 7 papers, 3 of them syntheses that pooled it.
What it found
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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.
A Large Randomised Placebo Controlled Trial Among Trauma Patients With, or at Risk of, Significant Haemorrhage, of the Effects of Antifibrinolytic Treatment on Death and Transfusion Requirement
Tranexamic Acid for the Treatment of Postpartum Haemorrhage: An International Randomised, Double Blind, Placebo Controlled Trial
Who cites it
7 citing papers in PubMed, 3 syntheses or guidelines pooled it, 23 citations in OpenAlex.
- Transfusion of blood and blood products for the management of postpartum haemorrhage.The Cochrane database of systematic reviews · 2025Pooled it
- Tranexamic acid for postpartum bleeding: a systematic review and individual patient data meta-analysis of randomised controlled trials.Lancet (London, England) · 2024Pooled it
- Prevalence of homebirth preference and associated factors among pregnant women in Ethiopia: Systematic review and meta-analysis.PloS one · 2023Pooled it
- Machine learning-based prognostic prediction and subphenotype identification in trauma-induced coagulopathy using early blood glucose trajectories.Frontiers in endocrinology · 2026Article
- Serological markers of transfusion transmissible infections and ABO blood groups in Najran, Saudi Arabia.Saudi medical journal · 2024Article
- Effectiveness of call system implementation for postpartum hemorrhage in a tertiary emergency medical center: a retrospective cohort study.BMC pregnancy and childbirth · 2023Article
- Prevalence and Associated Factors for Post-Caesarean Delivery Blood Transfusion in Eastern Sudan: A Cross-Sectional Study.Journal of blood medicine · 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
6 authors at 4 institutions in 3 countries.
Funding
Abstract
backgroundHemorrhage is a leading cause of death after trauma and childbirth. In response to severe hemorrhage, bleeding patients often receive transfusions of red blood cells, plasma, platelets, or other blood components. We examined risk factors for transfusion in acute severe bleeding in two trials of over 20,000 patients to better understand factors associated with transfusion likelihood. STUDY DESIGN AND
methodsWe conducted a cohort analysis of data from the CRASH-2 and WOMAN trials, two multinational trials that recruited patients with traumatic and postpartum hemorrhage, respectively. For each trial, we examined the effect of 10 factors on blood transfusion likelihood. Univariate and multivariate Poisson regressions were used to analyze the relationship between risk factors and blood transfusion.
resultsOf the 20,207 traumatic hemorrhage patients, 10,232 (51%) received blood components. Of the 20,060 women with postpartum hemorrhage, 10,958 (55%) received blood components. For patients who suffered from traumatic hemorrhage, those greater than three hours from injury to hospitalization were more likely to be transfused (ARR 1.37; 95% CI, 1.20-1.56). Postpartum hemorrhage patients had an increased likelihood of transfusion if they gave birth outside the hospital (ARR 1.30; 95% CI 1.22-1.39), gave birth more than three hours before hospitalization (ARR 1.09; 95% CI 1.01-1.17), had a Caesarean section (ARR 1.16; 95% CI 1.08-1.25), and if they had any identifiable causes of hemorrhage other than uterine atony.
conclusionSeveral risk factors are associated with an increased likelihood of transfusion in traumatic and postpartum hemorrhage patients. Altering modifiable factors, by reducing time from injury or childbirth to hospitalization, for example, might be able to reduce transfusions and their complications.
trial registrationCRASH-2 is registered as ISRCTN86750102, ClinicalTrials.gov NCT00375258 and South African Clinical Trial Register DOH-27-0607-1919. WOMAN is registered as ISRCTN76912190, ClinicalTrials.gov NCT00872469, PACTR201007000192283, and EudraCT number 2008-008441-38.
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Identifiers
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.