Evidence map›Paper›PMID 38980883›Full record

ArticlePloS one2024

Predicting postpartum hemorrhage in women undergoing planned cesarean section: A multicenter retrospective cohort study in Japan.

Tomoko Yamaguchi, Hyo Kyozuka, Momoka Ito, Tsuyoshi Hiraiwa, Tsuyoshi Murata, Misa Sugeno, Fumihiro Ito, Daisuke Suzuki, Toma Fukuda, Shun Yasuda and 2 more

Abstract readMulticenter Study
In one paragraph

Article in PloS one, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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

1 citing paper in PubMed.

  1. Article
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

12 authors.

Tomoko YamaguchiDepartment of Obstetrics and Gynecology, Ohta Nishinouchi Hospital, Koriyama city, Fukushima, Japan.
Hyo KyozukaDepartment of Obstetrics and Gynecology, Ohta Nishinouchi Hospital, Koriyama city, Fukushima, Japan.ORCID 0000-0001-7782-3396
Momoka ItoDepartment of Obstetrics and Gynecology, Ohta Nishinouchi Hospital, Koriyama city, Fukushima, Japan.
Tsuyoshi HiraiwaDepartment of Obstetrics and Gynecology, Iwase General Hospital, Sukagawa city, Fukushima, Japan.
Tsuyoshi MurataDepartment of Obstetrics and Gynecology, Shirakawa Kosei General Hospital, Shirakawa, Fukushima, Japan.
Misa SugenoDepartment of Obstetrics and Gynecology, Iwase General Hospital, Sukagawa city, Fukushima, Japan.
Fumihiro ItoDepartment of Obstetrics and Gynecology, Ohta Nishinouchi Hospital, Koriyama city, Fukushima, Japan.
Daisuke SuzukiDepartment of Obstetrics and Gynecology, Ohta Nishinouchi Hospital, Koriyama city, Fukushima, Japan.
Toma FukudaDepartment of Obstetrics and Gynecology, Fukushima Medical University School of Medicine, Fukushima, Japan.
Shun YasudaDepartment of Obstetrics and Gynecology, Fukushima Medical University School of Medicine, Fukushima, Japan.
Fujimori KeiyaDepartment of Obstetrics and Gynecology, Fukushima Medical University School of Medicine, Fukushima, Japan.
Yasuhisa NomuraDepartment of Obstetrics and Gynecology, Ohta Nishinouchi Hospital, Koriyama city, Fukushima, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Given Japan's unique social background, it is critical to understand the current risk factors for postpartum hemorrhage (PPH) to effectively manage the condition, especially among specific groups. Therefore, this study aimed to identify the current risk factors for PPH during planned cesarean section (CS) in Japan. This multicenter retrospective cohort study was conducted in two tertiary maternal-fetal medicine units in Fukushima, Japan and included 1,069 women who underwent planned CS between January 1, 2013, and December 31, 2022. Risk factors for PPH (of > 1000 g and > 1500 g) were assessed using multivariate logistic regression analysis, considering variables such as maternal age, parity, assisted reproductive technology (ART) pregnancy, pre-pregnancy body mass index (BMI), uterine myoma, placenta previa, gestational age at delivery, birth weight categories, and hypertensive disorders of pregnancy (HDP). Multivariate linear regression analyses were conducted to predict estimated blood loss during planned CS. ART pregnancy, a pre-pregnancy BMI of 25.0-29.9 kg/m2, and uterine myoma increased PPH risk at various levels. Maternal smoking increased the risk of >1500 g PPH (adjusted odds ratio: 3.09, 95% confidence interval [CI]: 1.16-8.20). Multivariate linear analysis showed that advanced maternal age (B: 83 g; 95% CI: 27-139 g), ART pregnancy (B: 239 g; 95% CI: 121-357 g), pre-pregnancy BMI of 25.0-29.9 kg/m2 (B: 74 g; 95% CI: 22-167 g), uterine myoma (B: 151 g; 95% CI: 47-256 g), smoking (B: 107 g; 95% CI: 13-200 g), and birth weight > 3,500 g (B: 203 g; 95% CI: 67-338 g) were associated with blood loss during planned CS. Considering a patient's clinical characteristic may help predict bleeding in planned CSs and help improve patient safety.

Indexed as

Cesarean SectionPostpartum HemorrhageAdultBody Mass IndexFemaleHumansJapanMaternal AgePregnancyRetrospective StudiesRisk Factors

Identifiers

PMID38980883
PMCPMC11233003

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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.