Evidence map›Paper›PMID 28367647›Full record

ArticleThe journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians2018

Risk for postpartum hemorrhage, transfusion, and hemorrhage-related morbidity at low, moderate, and high volume hospitals.

Audrey A Merriam, Jason D Wright, Zainab Siddiq, Mary E D'Alton, Alexander M Friedman, Cande V Ananth, Brian T Bateman

Abstract readComparative Study
In one paragraph

Article in The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Predicting postpartum haemorrhage: A systematic review of prognostic models.The Australian & New Zealand journal of obstetrics & gynaecology · 2022
    Pooled it
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  5. Structures of human prostaglandin FNature communications · 2023
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  13. Postpartum hemorrhage and risk for postpartum readmission.The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians · 2021
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Audrey A Merriama Department of Obstetrics and Gynecology , College of Physicians and Surgeons, Columbia University , New York , NY , USA.
Jason D Wrighta Department of Obstetrics and Gynecology , College of Physicians and Surgeons, Columbia University , New York , NY , USA.
Zainab Siddiqa Department of Obstetrics and Gynecology , College of Physicians and Surgeons, Columbia University , New York , NY , USA.
Mary E D'Altona Department of Obstetrics and Gynecology , College of Physicians and Surgeons, Columbia University , New York , NY , USA.
Alexander M Friedmana Department of Obstetrics and Gynecology , College of Physicians and Surgeons, Columbia University , New York , NY , USA.
Cande V Anantha Department of Obstetrics and Gynecology , College of Physicians and Surgeons, Columbia University , New York , NY , USA.
Brian T Batemanc Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital; the Department of Anesthesiology, Critical Care, and Pain Medicine , Harvard Medical School , Boston , MA , USA.

Funding

Mentored Clinical Scientist Research Career Development AwardK08HD082287 · NICHD · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI FRIEDMAN, ALEXANDER M · 2015 to 2018
$593k
NICHD NIH HHS K08 HD082287
6 · The paper itself

Abstract

objectiveThe objective of this study was to characterize risk for and temporal trends in postpartum hemorrhage across hospitals with different delivery volumes. STUDY

designThis study used the Nationwide Inpatient Sample (NIS) to characterize risk for postpartum hemorrhage from 1998 to 2011. Hospitals were classified as having either low, moderate or high delivery volume (≤1000, 1001 to 2000, >2000 deliveries per year, respectively). The primary outcomes included postpartum hemorrhage, transfusion, and related severe maternal morbidity. Adjusted models were created to assess factors associated with hemorrhage and transfusion.

resultsOf 55,140,088 deliveries included for analysis 1,512,212 (2.7%) had a diagnosis of postpartum hemorrhage and 361,081 (0.7%) received transfusion. Risk for morbidity and transfusion increased over the study period, while the rate of hemorrhage was stable ranging from 2.5 to 2.9%. After adjustment, hospital volume was not a major risk factor for transfusion or hemorrhage. DISCUSSION: While obstetric volume does not appear to be a major risk factor for either transfusion or hemorrhage, given that transfusion and hemorrhage-related maternal morbidity are increasing across hospital volume categories, there is an urgent need to improve obstetrical care for postpartum hemorrhage. Those risk factors are able to discriminate women at increased risk supports routine use of hemorrhage risk assessment.

Indexed as

AdolescentAdultBlood TransfusionFemaleHospitals, High-VolumeHospitals, Low-VolumeHumansMiddle AgedPostpartum HemorrhagePregnancyUnited StatesYoung Adultmaternal morbiditymaternal safetyObstetric hemorrhage

Identifiers

PMID28367647
PMCPMC6112239

What OpenQuestion holds

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Registered trials

None linked

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.